Agents that paralyze skeletal muscle by simple competitive inhibition of acetylcholine at muscle receptor sites are called?
a. nondepolarizing
b. depolarizing
c. antagonizing
d. repolarizing
Answer:
a. nondepolarizing
Explanation:
As the nerve impulse arrives, the synaptic end bulbs of the motor neurons release acetylcholine in the synapse. Acetylcholine binds to its receptors present at the motor endplate. This results in the opening of an ion channel in the ACh receptor to allow the movement of the Na+ into the cell. This makes the inside of the muscle fiber more positively charged, that is, depolarized.
Depolarization triggers a muscle action potential. Drugs or chemicals that paralyze skeletal muscle by competitive inhibition of acetylcholine at muscle receptor sites are called non-depolarizing as they do not allow the acetylcholine to facilitate the depolarization of the muscle fiber.
A population of naked mole rats has a recessive allele that in the homozygous state leads to a distinct splotchy skin phenotype. The un-mutated allele is denoted A whereas the splotchy allele is a. Naked mole rats are blind as well as naked and show no preference or distaste for the splotchy allele. There are no other evolutionary pressures and so it is in Hardy Weinberg equilibrium at this locus. The frequency of the a allele is 0.2. What is the percentage of the population that is heterozygous at this locus (Aa)?Select one:
a. 0.2
b. 2.0
c. 4.0
d. 16.0
e. 32.0
Answer:
e. 32%
Explanation:
The given population is in Hardy Weinberg equilibrium. This means that the population follows following equations:
Frequency of dominant allele (p) + frequency of recessive allele (q) = 1
Frequency of heterozygous genotype in the population= 2pq
According to the given information, the frequency of the recessive allele "a" in the population is=0.2
So, the frequency of the dominant allele (p) would be= 1-0.2= 0.8
And frequency of heterozygous genotype in the population= 2pq = 2 x 0.8 x 0.2 = 0.32 = 32%
temperature. Imagine that when a bacterial cell carrying such a mutation is shifted from low to high growth temperatures, RNA polymerases in the process of elongation complete transcription normally, but no new transcripts can be started. The mutation in this strain most likely affects what feature?
Answer:
Answer is sigma.
Explanation:
The sigma factor can be described as protein regulating transcription in bacteria. That is, it enables the synthesis of RNA at specific locations in DNA. This specific location is known as promoters.
The sigma factor is also known as specificity factor, because, it is specific for the gene.
Transcription can be explained as the process by which genetic information in the DNA strained are copied into a new molecule of mRNA, through the aid of RNA polymerase.
It should be noted that, when there is an increase in pressure, at constant temperature, the stability of elongation complex will decrease. This means that, temperature determines the pressure at which transcription elongation stops.
The most important common aspect between menstruation in girls and nocturnal emissions in boys is that
Answer:
The most important common aspect between menstruation in girls and nocturnal emissions in boys is that they both occur during puberty.
Explanation:
Answer:
They both occur during puberty and mark the onset or beginning of fertility.
Which of the following lists best summarizes the primate characteristics that laid the foundation for human culture? a. manual dexterity and a large brain size b. upright bipedal walking and social natures c. running ability and the ability to develop weapons as part of a group d. the ability to hunt and gather food
Answer:
(a) Manual Dexterity and large brain size
Explanation:
In primates there cerebrum is expanded. The area of the brain that correlate with eye Hans coordination and stereoscopic vision are particularly large just like in humans
Primate characteristics significant to the foundation of human culture include manual dexterity, large brain size, upright bipedal walking, and social natures. These traits allowed for tool use, enhanced cognitive abilities, the freedom for more tasks, and increased communication and cooperation within groups.
Explanation:The primate characteristics that laid the foundation for human culture are best summarized by the options a. manual dexterity and a large brain size and b. upright bipedal walking and social natures. The manual dexterity allowed primates to manipulate their environment and interact with it in detailed ways, essential for tool creation and usage. Their large brain size relates to the cognitive abilities that also formed the basis for the development of culture. Upright bipedal walking freed up the hands for other tasks. Social natures promoted communication and cooperation within groups which is at the heart of any culture.
Learn more about Primate Characteristics here:https://brainly.com/question/32507779
#SPJ3
________ are used to measure abilities such as abstract reasoning, verbal fluency, and spatial memory.
Answer:
Intelligence test
Explanation:
Intelligence refers to the ability to acquire knowledge and apply it.
Intelligence tests are used to determine or measure the intelligence quotient of an individual.
Abilities such as abstract reasoning, verbal fluency and spatial memory are put into consideration.
There are many intelligence tests but the most commonly used is the Stanford-Binet intelligence scale and the Wechsler scales.
_____________ is an organism's response to a stimulus that includes a mixture of physiological arousal, expressive behaviors, and conscious experience.
Answer:
Emotion is an organism's response to a stimulus that includes a mixture of physiological arousal, expressive behaviors, and conscious experience.
Explanation:
What is an Emotion?
Emotion is a neural drive that moves a living organism to action, provoking automatic reactive behavior that has been adapted through evolution as an survival mechanism to meet a survival need. In simple words we can say that Emotion is a mental state related with the central nervous system, several chemical messengers released in neural signal transmissions are responsible for different emotions like happiness, sadness, difference in thoughts etc
DNA stores the information needed to build and control the cell. The transmission of this information from mother to daughter cells is called vertical gene transfer and it occurs through the process of DNA replication. Use the model to explain how the structure of DNA faciltates the process of DNA replication?
A) Two complementary DNA molecules open. Strands from the two are swapped, and the two DNA strands become four.
B) During DNA replication, the molecule unzips and each side provides a template for the new side of the ladder following the base pair rule.
C) Individual nucleotides are carried via mRNA into the nucleus to match each unpaired nitrogen base, exposed during the opening of the DNA molecule.
D) DNA polymerase unzips the DNA molecule. It then reads each strand and sends a signal to tRNA to bring the correct nitrogen base to each exposed site.
Answer:
The correct answer is : B.
Explanation:
DNA replication in prokaryotes involve the following steps :Topoisomerase enzymes are responsible for uncoiling the DNA supercoils.Helicase enzyme unwinds the double stranded DNA into single strands.Primase enzyme generates short RNA primers that are complementary to DNA sequence. DNA polymerase III elongates the primers and produces the daughter strands complementary to the parent strand.DNA polymerase I replace the RNA primers with DNA sequence.DNA Ligase joins the gaps in between the DNA sequences.Answer:
b
Explanation:
i did the usatestprep
Hydrolytic enzymes must be segregated and packaged to prevent general destruction of cellular components. Which of the following organelles contains these hydrolytic enzymes in animal cells?A) chloroplastB) lysosomeC) central vacuoleD) peroxisomeE) glyoxysome
Answer:
B) Lysosome
Explanation:
Lysosomes are cell organelles that found in eukaryotic cells. Lysosomes consists of a double membrane as a covering and an interior made up hydrolytic enzymes. These enzymes, which also known as digestive enzymes, have specific various catalytic functions in the breaking down of proteins and other complex molecules. Some examples of these hydrolytic enzymes that is found bounded in lysosome include proteases,glycosidases, phosphatases.
A 9-year-old girl is taught that she is expected to obey her parents and other authority figures. She is also taught that she should conform to expectations including the traditional gender roles of her culture. Where does this girl most likely live?
Pakistan T/F
Answer:
The correct answer is "T" True.
Explanation:
Pakistan have traditional gender roles defined by a patriarchal society, where men are authority figures. and women have a limited participation in society. In Pakistan, girls are taught to obey her parents and other authority figures since a young age as they should follow a series of rule to fit in her traditional gender roles. The women's traditional role in Pakistan include being obedient, organized, compromised, maintain hospitality and take care of their children.
Answer:
It's true
Explanation:
I'm a Pakistani and i know it better. A girl has a very constricted niche in which she is allowed to perform her roles. Her role list is also very concise. She is taught about her culture and traditions at a very young age because all the values that are given to her will gradually accumulate in her brain as her age in increasing. As she become an adult, now she has a full hold how to perform her traditional roles.
While in South America, you come across what you think are two groups of birds in the same location. They are nearly identical aside from their color. After years of observation, you conclude that the birds eat similar diets and share similar behaviors but do not reproduce with each other. Are these two groups of birds the same or different species? Explain. - two different species on the basis of reproductive behavior.
Answer:
The two groups of birds are of different species
Explanation:
According to the biological species concept, members of the same species would interbreed successfully to produce viable offspring that are fertile. This concept explains that appearance alone is not enough to use as a yardstick to determine is two groups belong to the same species, and that reproductive barriers tend to make it impossible or both species to interbreed successfully and produce viable and fertile offspring.
On the basis of reproductive behavior, we can conclude that these two groups of birds that are identical, are of different species since they are unable to reproduce with each other.
It is on this same basis that a horse and a donkey is being considered as different species even though they were able to interbreed to produce an offspring, however, the offspring are sterile. They are not considered the same species according to the biological species concept.
Consider the two types of sudoriferous glands. Then click and drag each label into the appropriate category to determine whether it applies to apocrine glands, merocrine (eccrine) glands, or both.
Full Question:
Consider the two types of sudoriferous glands. Then click and drag each label into the appropriate category to determine whether it applies to apocrine glands, merocrine (eccrine) glands, or both.
-Not active until puberty
-Use myoepithelial cells to secrete
-Secrete sweat
-Found in pubic and axillary regions
-Secrete pheromones
-Abundant on hands, feet, and forehead
-Found over entire body
-Scent is meant to attract a potential male
-Thermoregulation
-Utilize ducts to release sweat
Answer:Apocrine Glands:
-Not active until puberty
-Secrete pheromones
-Found in pubic and axillary regions
-Scent is meant to attract a potential male
Merocrine Glands:
-Found over entire body
-Thermoregulation
-Abundant on hands, feet, and forehead
Both Apocrine and Merocrine Glands:
-Secrete sweat
-Use Myoepithelial cells to secrete
-Utilize ducts to release sweat
Explanation:The apocrine and merocrine glands are the subcategories of the sudoriferous glands which secrete the different types of secretions like sweat and oils. Both of them have myoepithelial cells.
The apocrine glands are mainly dependent on the sex hormones and are mainly present in the public region, beard etc. The sweat secreted from these glands are rich in fatty acids and other pheromones. These glands are regional in nature. But the merocrine glands are not hormonal in nature. They are distributed all over the body and secrete sweat whose primary function is to lower body temperature.
Apocrine Glands: These glands are associated with hair follicles and release a thicker, odorless secretion. They are primarily found in areas like the armpits and groin.
Merocrine (Eccrine) Glands: These glands release a watery, odorless sweat directly onto the skin's surface and are distributed all over the body, assisting in temperature regulation.
Both: Both types of glands are involved in regulating body temperature through sweat production. However, their secretion composition and distribution differ.
Sudoriferous glands, also known as sweat glands, encompass two primary types: apocrine and merocrine (eccrine) glands. Apocrine glands, predominantly found in regions like the armpits and groin, produce a thicker secretion associated with body odor.
In contrast, merocrine or eccrine glands release a watery and odorless sweat directly onto the skin's surface, distributed across the entire body, playing a pivotal role in regulating body temperature. Both types of glands participate in thermal regulation by promoting sweat production, although their secretions differ in composition and distribution. Understanding these distinctions is crucial in comprehending how our bodies manage temperature and maintain overall homeostasis.
To know more about Sudoriferous glands click here :
brainly.com/question/19581847
#SPJ12
The complete question is -"Classify characteristics for apocrine glands, merocrine (eccrine) glands, or both among the two types of sudoriferous glands."
When the base composition of double-stranded DNA from Micrococcus luteus was determined, 37.5% of the bases were found to be cytosine. What is the percentage of adenine in the DNA of this organism?________ % adenine.
Answer:
12.5% Adenine
Explanation:
According to Chargaff who proposed the complementary base pairing rule in DNA, the concentration of bases (purine and pyrimidines) is equal to 100% i.e. A+T+G+C= 100%.
Since Cytosine pairs with Guanine, there would be an equal amount of both in the DNA molecule i.e. Cytosine=Guanine=37.5%
37.5 (C) + 37.5 (G) = 75%
100 - 75 = 25%
Hence, we have 25% left to share among Adenine and Thymine, which will contain equal amount. 25/2 = 12.5%.
Both Adenine and Thymine will have 12.5% each.
On May 18, 1980, Mount St. Helens in Washington State experienced a huge volcanic eruption after a magnitude 5.1 earthquake. During the eruption, hot ash and pumice poured down the west, south, and east sides of the mountain, melting the snow and ice at the top of the volcano and creating volcanic mudflows. Which type of change was seen in the ecosystem around Mount St. Helens after it erupted?a. primary succession b. secondary succession c. a climax community d. species extinction
Explanation:
Succession is a directional non-regular total change in the sorts of plant species that involve a given region through time. It includes the procedures of colonization, foundation, and annihilation which follow up on the taking an interest plant species. Most successions contains various stages that can be perceived by the assortment of species that overwhelm by then in the succession start when a zone is made in part or totally without vegetation due to an unsettling influence. Some basic instruments of unsettling influence are fires, wind storms, volcanic emissions, logging, environmental change, extreme flooding, sickness, and irritation. Succession stops when species organization changes never again happen with time, and this community is said to be a peak network.So, the correct answer is option a "primary succession"Answer is A, Primary Succession
King has been in and out of the juvenile court for a variety of minor offenses Some within the court refer to the court as King's revolving door because adjudication does not appear to inhibit his delinquent behavior. His court-appointed lawyer has suggested that the justice system may actually be sustaining, rather than inhibiting King's behavior. What theory aligns with the lawyer's view?
Answer:
Social Conflict Theory.
Explanation:
The social conflict theory was given by the Karl Marx which believes that conflict among the society is common and the historical fights might occur due to the conflict reason.
The different groups present in the society are involved more in conflict with each other rather than on the basis of the consensus. The minor offenses create conflict in the court against the king and people start share their veiws to conflict against the king.
Thus, the answer is social conflict theory.
Final answer:
The theory that aligns with the lawyer's view on the justice system possibly sustaining King's delinquent behavior is the Labeling Theory. This theory suggests that societal labels, such as being called a delinquent, can influence an individual's behavior and self-identity, potentially leading to a cycle of crime. The interaction with the criminal justice system might reinforce rather than deter criminal behaviors.
Explanation:
The theory that aligns with the lawyer's view that the justice system may actually be sustaining, rather than inhibiting King's behavior is the Labeling Theory. Labeling Theory suggests that the labels people are given by society, particularly those in positions of authority such as the criminal justice system, can influence their self-identity and behaviors. This theory posits that by labeling someone as a delinquent or criminal, the system can inadvertently confirm the individual's delinquent identity, making it more difficult for them to break out of a cycle of crime. Labeling someone as a 'criminal' can lead to a self-fulfilling prophecy where the labeled individual conforms to the expectations of that label.
In King's case, the continuous interaction with the juvenile court system and the subsequent labels attached to him might be reinforcing the behaviors that bring him back into the system, rather than deterring future criminal activities. This embodies the criticism within the Labeling Theory towards the criminal justice system's approach to handling juvenile delinquency, as it might perpetuate the very behaviors it aims to stop.
What is the primary target area in the cortex for information regarding muscle-stretch and joint receptors?
Answer:
The answer is "Primary Somatosensory Cortex".
Explanation:
The sensations we experience such as touching something warm or cold, extending our muscles and limbs and changing their locations and orientations are collectively called somatic sensations and they are processed in the brain's "Primary Somatosensory Cortex". So the answer of the primary target area in the cortex of our brain for information of muscle stretch etc is the primary somatosensory cortex.
I hope this answer helps.
Pacemaker cells are located in the ______________; Contractile cells are located in the _____________.
What is the name of the period from 2 to 8 weeks following fertilization during which significant growth occurs in the major organs and body systems?
Answer:
The correct answer is embroynic stage
Explanation:
The prenatal development is divided into three stages germinal stage, embryonic stage and fetal stage. The period of two weeks after fertilization is called the germinal stage. In this stage, the zygote divided and gets implanted in the uterine wall.
The embryonic stage starts for two weeks and lasts up to 8 weeks after fertilization. At this stage, the cell mass is called embryo. In the embryonic stage, the basic brain structure, CNS, PNS are developed. All the basic organs and body parts develop in this stage except sex organs. So the right answer is the embryonic stage.
The U.S. government protects fish, a common resource, by A. heavily taxing competing industries. B. subsidizing the fishing industry. C. selling fishing licenses and regulating fish lengths. D. None of the above is correct.
Answer:
The U.S. government protects fish, a common resource, by selling fishing licenses and regulating fish lengths
Explanation:
When there is regulation about a particular goods, it reduces the rate the availability of such goods is abused, US government could actually protect fish through licensing and regulation of the type to be sold including there length which ensures the protection of the juvenile.
______________ is a statistical procedure that can be used to identify clusters of behaviors that are related to a trait.
Answer:
Factor Analysis
Explanation:
Factor Analysis is a statistical procedure that can be used to identify clusters of behaviors (such as verbal skills, intelligence) that are related to a trait.
Factor analysis helps to accumulate a lot of data in many variables into a few variables which can be used for further analysis or study. The aim of factor analysis is to aggregate individual behaviors into a minimized number of factors.
If a red blood cell and a plant cell were placed in seawater, what would happen to the two types of cells?
Answer:
Both cells would lose water, the red blood cell would shrivel and the plant plasma membrane would pull away from the cell wall.
In seawater, which is hypertonic, red blood cells might shrink and die due to losing water, disrupting cellular processes. Plant cells, with protective cell walls, can survive better but under extreme concentrations may also lose water and undergo plasmolysis.
Explanation:If a red blood cell and a plant cell were placed in seawater, different things would occur due to the high concentration of solutes (salt) in the water. Seawater is hypertonic compared to the cellular fluids, which means it has a higher concentration of solutes.
Red blood cells will lose water and shrink or crenate. This occurs due to osmosis, the movement of water from a lower concentration of solutes (inside the cell) to a higher concentration (outside in the seawater), until equilibrium is reached. Losing water disrupts the balance of solutes, making the cytosol denser, interfering with diffusion, compromising the cell's ability to function, and it may result in cell death.
On the other hand, for plant cells, their cell walls allow them to withstand the pressure better than red blood cells. However, if the concentration becomes too extreme, plant cells may also lose water and enter a state known as plasmolysis.
Learn more about Cell response to seawater here:https://brainly.com/question/12594769
#SPJ12
Use mathematical representations to trace the transfer of matter and energy from one organism to another.
Transfer = 10/100 of total energy.
Explanation:
Energy and matter is transferred from one organism to another by the process of food chain and food web. In food chain the organism of higher trophic level feeds on the organisms of lower trophic level. On feeding only 10% of the energy gets transferred to the organism of higher trophic level while the rest are being used in the metabolic processes and are produced as heat. This is called as ten percent energy transfer rule.
The mathematical representation of the transfer of energy is given as
Transfer = 10/100 of total energy.
Match the transport process to its description. A. simple diffusion B. facilitated diffusion C. both D. neither confirm(s) to the properties of specificity, competition, and saturation
Answer:
Simple diffusion do not show the property of specificity, competition, and saturation.
Facilitated diffusion shows properties of specificity, competition, and saturation.
Explanation:
Diffusion or simple diffusion may be defined as the process of movement of particles along the concentration gradient and an energy independent process. Facilitated diffusion occurs with the help of carrier protein.
Specificity is the ability to transfer the specific molecules only. Simple diffusion is not specific in nature while facilitated diffusion can transfer specific molecules only. Competition refers to the ability of transporter to transport the closely related molecules but the substrate must compete with each other. The simple diffusion do not have any competition in their molecules whereas the molecules of the facilitated diffusion must compete with each other. Saturation means the transport rate depends on the substrate and number of molecules. This property is common in facilitated diffusion and not in simple diffusion.
Thus, the answer is Simple diffusion do not show the property of specificity, competition, and saturation.
Facilitated diffusion shows properties of specificity, competition, and saturation.
WILL BRAINLIEST 100 POINTS AND OTHER STUFF
Read each example and decide what the resulting effect on the gene pool of that population would be.
-------- A zebra migrates to join a different herd of zebras.
----------Competition for sunlight leads to taller trees.
-----------The DNA of a snake changes to make its venom stronger.
------------- A grassfire randomly sweeps through a population of buffalo and kills most of the animals.
the ------ are blanks and here are what the answers could be.
creates new alleles from DNA
bring new alleles from other populations
randomly selects alleles
favor certain alleles
Answer:
1. Bring new alleles from DNA
2. Favor certain alleles
3. Creates new alleles from DNA
4. Randomly selects alleles
Explanation:
1. The zebra enters a separate population, bringing their unique makeup into a group with similar genetic makeup
2. The organisms with genes for shorter heights will eventually die off, favoring organisms with greater height
3. The snake's DNA changes, allowing it to create stronger venom
4. The deaths of the animals weren't planned or the result of greater genes.
What theory of hearing contends that the entire basilar membrane vibrates as a whole in response to a sound?
Answer:
The correct answer is - the place theory of hearing.
Explanation:
The place theory of the hearing is the theory that states that the hearing contends that the each component of the basiiar membrane vibrates as a in response to a sound.
In the response of the sound sensation the whole basilar membrane activates that result in the perception of the sound. The components frequencies produces vibration along the basilar membrane.
Thus, the correct answer is - the place theory of hearing.
Shelly is pessimistic about her future. Her disinterest for everything around her, together with worry and rumination, make it difficult for her to cope with even the most minor of daily events. These symptoms demonstrate which domain of depression?
Answer:
cognitive
Explanation:
The symptoms of depression are characterized into three broad groups
1. Cognitive – The common symptoms observed include constant negative thoughts, pessimism, feeling guilty for all bad happenings around them, thinking of ending their life
2. Behavioral – These include behavioral changes occurring in a person facing depression such as poor hygiene, inefficiency in work, constant crying, anti-social thoughts and behaviour and low energy
3. Emotional – Under this head a person feel sad, lonely, worthless and hopeless.
Final answer:
Shelly's symptoms, characterized by persistent disinterest, worry, rumination, and difficulty with daily tasks, fall within the cognitive domain of depression, typical of major depressive disorder.
Explanation:
The symptoms Shelly is experiencing demonstrate the cognitive domain of depression. Major depressive disorder is characterized by a persistent and all-encompassing low mood, low self-esteem, and anhedonia, which is the loss of interest in previously enjoyable activities. Shelly's disinterest, worry, rumination, and difficulty in coping with daily events are aligned with cognitive symptoms, including poor concentration, feelings of worthlessness, and negative views of herself and the world.
Depressive disorders can cause individuals to struggle with negative self-perception and difficulties in maintaining day-to-day functioning. Shelly's situation outlines the profound impact depression can have on an individual's ability to find pleasure in life and complete daily tasks, pointing towards a possible diagnosis of major depressive disorder.
The geological timescale was first developed using the fossil record, but this provided only a system of relative dating; absolute dates weren't established until the discovery of: _______________-
Answer:
Radioactive decay
Explanation:
Radioactive decay which is a property of several elements found on the earth involves the emission of charged particles and energy of unstable nuclei of radioactive atoms, thereby becoming stable with time. The rate of radioactive decay is often referred to as half-life of that element, and could be as more than millions of years. Radioactive elements that undergo radioactive decay have made it possible for a more accurate dating to be achieved using the known decay rates of radioactive materials.
For a certain insecticide, the LD-50 dosage level for rats is determined to be 250 milligrams per kilogram of body mass. On the basis of this information, which of the following is the best prediction regarding the consequences of receiving this dosage of the insecticide?
a. Fifty percent of any rat population would be sickened.
b. Fifty percent of the population of any warm-blooded animal would die.
c. Fifty percent of any population of mosquitoes would die.
d. Five hundred out of every one thousand people would experience acute effects
e. Five hundred out of every one thousand rats would die.
Answer:
The answer is E- Five hundred out of every one thousand rats would die
Explanation:
LD means Lethal Dose. LD-50 dosage level is defined as the lethal dose of toxin in milligrams of chemical per kilogram of body weight in which when given all at once is required to kill half (50%) of a test population after a specified test duration. As in the scenario, the insecticide has a LD-50 dosage level for rats to be 250 mg/kg, then 50% of the population of the rats is required to be dead. Hence, five hundred (500) out of every one thousand (1000) rats would die.
Weathering can be either a chemical or a physical process. The action of water causes physical weathering of rock. Which examples of weathering are the result of the action of water?
Frost wedging is a type of physical weathering of rock.
Explanation:
Physical or mechanical weathering affects the rock structurally but does not change the chemical composition. Mechanical forces will rub, break or shatter the rock surfaces. Wedging, abrasion, exfoliation are different types of physical weathering.
Water is one of the main sources which alter the structure of the rocks physically.
Frost wedging occurring due to flow of freezing water over the rocks. This frozen water enters the rock through the cracks and crevices on the rock surface, and will expand inside and makes the rocks to crack further and breaks it apart.
Final answer:
Water plays a significant role in the physical weathering of rocks through processes like frost wedging, root wedging, and insolation weathering. These processes contribute to the mechanical breakdown of rocks without altering their chemical composition.
Explanation:
The action of water can cause several examples of physical weathering of rock:
Frost wedging: This occurs when water seeps into cracks in rocks and freezes. When water freezes, it expands, applying pressure to the rock and causing it to break apart.
Root wedging: As plant roots grow, they can extend into the small crevices of rocks. As the roots grow thicker, they exert a force that can physically weather and break the rock.
Insolation weathering: This involves the expansion and contraction of rocks due to temperature changes. Although water isn't directly breaking the rock, it can promote this process by penetrating the rocks and enhancing thermal stresses.
Additionally, the physical breakdown of rocks by water can lead to increased surface area, making the rocks more susceptible to further chemical weathering.
Help, please!!! 50 points!!!
What effects does ionizing radiation have on the atmosphere? Select the two correct answers.
Answer:
The correct answers are :
It forms ozone in the stratosphere.It ionises atoms and molecules in the thermosphere.Explanation:
Ionising radiations like the cosmic rays are responsible for:Breaking of oxygen molecules in the stratosphere to yield nascent oxygen which again reacts with oxygen molecules to form Ozone.The molecules of different gases present in the thermosphere are radiolysed by these ionising radiations generating ions and huge amount of heat energy. This energy is responsible for the higher temperature in the thermosphere.Which perspective can be described as a marriage between the science of the mind and the science of the brain?
Answer:
Neuroscience or Cognitive Psychology
Explanation:
Cognitive psychology is one of the perspectives in psychology that examines internal mental processes such as problem solving, memory, and language. i.e, a marriage between the science of the mind and the science of the brain
Biopsychology is the perspective that combines the science of the mind and the science of the brain.
The perspective that can be described as a marriage between the science of the mind and the science of the brain is biopsychology. Biopsychology, also known as behavioral neuroscience, is a field that combines biology and psychology to study how the brain and nervous system influence behavior and mental processes. It examines the physiological processes and structures that underlie psychological processes and behavior.
For example, biopsychologists may analyze how changes in neurotransmitter levels can affect mood disorders like depression, or how brain injuries can impact memory and cognition. This interdisciplinary approach helps bridge the gap between the study of the mind and the study of the brain, providing a comprehensive understanding of the biological basis of behavior.
Learn more about biopsychology here:https://brainly.com/question/34644311
#SPJ3