Answer: RESPIRATORY ORGAN
Explanation:
Respiratory failure is common in the first 72 hours. Subsequently, one might see liver failure (5–7 days), gastrointestinal bleeding (10–15 days) and kidney failure (11–17 days).
Which statement forms part of cell theory?
Answer: Option D) All living things are made up of cells
Explanation:
The cell theory states that:
- the cell is the structural and functional unit of life
- all living organisms are made of cells
- all cells come from previously existing cells
- there is no life apart from the life of cells
- all living things are either single cells (unicellular) or group of cells (multicellular)
according the the article, which of the following statements regarding gene therapy is true?
a: gene therapy is not a suitable medical treatment for cancer.
b: gene therapy only works in cases involving diseases of the eye
c: there are risks and benefits associated with gene therapy.
d: all of the above
Answer:
The answer is C. there are risks and benefits associated with gene therapy
not b, since they used it on people/animals who were blind
not a, since 70% tests have been on cancer
Answer:
There are risks and benefits associated with gene therapy
Explanation:
Scientists are currently exploring the use of gene therapy to treat numerous illnesses. Much of the research has involved the treatment of non-infectious diseases, such as cancer and diabetes, and genetic disorders. Gene therapy is a relatively new treatment, and medical researchers are still looking into other applications of the new technology.
There are risks and benefits associated with gene therapy. Some studies, such as the Leber's congenital amaurosis study, have produced promising results. However, there have been a few cases in which patients experienced complications.
An online article that your professor asked you to critique states that African Americans cannot contract malaria, even if they go to endemic areas, because of a genetic trait that confers protection from the disease. Why is this article incorrect?
A. African Americans have lost the allele for normal red blood cells through genetic drift from their ancestral African population.
B. balanced polymorphism means that not all African Americans are heterozygous for the sickle cell trait.
C. protection from malaria cannot be conferred by genes.
D. African Americans are more likely to have thalassemia, which does not protect a person completely from contracting malaria.
Answer:
The answer is B.
Explanation:
Regarding the situation explained in the question that "African Americans are not affected by the malaria disease because of a specific genetic trait that they possess and that trait provides them with protection" can be explained by the answer given in option B.
Being heterozygous, meaning possessing a dominant and a recessive allele regarding that genetic trait, in terms of sickle cell trait which is a gene that causes the individual's blood cells to be sickle shaped and balanced polymorphism which means carrying two different versions of a gene is an argument that is enough to prove that the above statement is incorrect because it means they have blood cells that can be affected by the malaria disease.
I hope this answer helps.
The cognitive process that people use to make sense out of the environment by selecting, organizing, and interpreting information from the environment is called _____.
Answer:
The cognitive process that people use to make sense out of the environment by selecting, organizing, and interpreting information from the environment is called perception
Explanation:
Perception is ability to see , hear or become aware of something through sense or it is process of interpreting sensory stimuli. Our motiives greatly affects our perception. We perceive objects in our environment due to their feature such as pattern , depth and movements.
For example : A patient in a ward waiting for his visitors in evening would misperceive a stranger as a relative at a distance.
Our attention also affects our perception.
For example : While working in busy medical OPD when lot of patients surrounds a doctor , doctor just focus one patient for examination.
Variation that results in the evolution of one species to another is called
Genetic variation within a species -- also known as genetic diversity -- increases a species' opportunity for change over successive generations.
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For an animal to move in one direction, its muscles must do all of the following except
a. overcome the effects of friction.
b. exert a force in the opposite direction.
c. spend energy.
d. overcome the effects of gravity.
e. exert a force in the same direction.
Answer:
e
Explanation:
exert a force in the same direction
4. Describe the most likely direction of the prevailing winds across the Big Island of Hawaii.
The most likely direction of the prevailing winds across the Big Island of Hawaii is northeast.
Question you guys need to answer: 5) What is the basis for your answer to question 4 above?
The most likely direction of the prevailing winds across the Big Island of Hawaii is northeast.
Explanation:
The island of Hawaii, like all the other major Hawaiian Islands, is affected by the trade winds. These trade winds bring cool air to the islands from the north, often resulting in precipitation along inland/mountain and windward areas.
All of the Hawaiian Islands have both a windward and a leeward side. In general terms, the windward side is the wet, rainy, and therefore more lush, green, and tropical section. The windward side faces North or East, where it receives the benefit of the cool, trade-wind breeze.
Answer:
The island of Hawaii, like all the other major Hawaiian Islands, is affected by the trade winds. These trade winds bring cool air to the islands from the north, often resulting in precipitation along inland/mountain and windward areas.
Chondroblasts ________. Select one: a. never lose their ability to divide b. within the cartilage divide and secrete new matrix c. are mature cartilage cells located in spaces called lacunae d. remain in compact bone even after the epiphyseal plate closes
The correct answer to the question 'Chondroblasts ________.' is: b. within the cartilage divide and secrete new matrix.
Chondroblasts, which are young cartilage cells, play an active role in the cartilage development by dividing and secreting new extracellular matrix. The extracellular matrix, made up of collagen and elastin fibers, provides support and elasticity to the cartilage. This continues until the cells become mature chondrocytes, which are then located in the spaces called lacunae. Chondroblasts are part of the endochondral ossification process, where they form a hyaline cartilage diaphysis template in long bones.
Upon a set of complex developmental signals, this matrix begins to calcify. When the matrix calcifies, this prevents the diffusion of nutrients thus causing some chondrocytes to die and creating cavities within the diaphysis cartilage. Eventually, these cavities become filled with blood vessels and osteoblasts, which modify the calcified cartilage matrix into spongy bone.
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Researchers believe that the size difference between male and female brains results from the influence of: a. gender identity. b. progesterone. c. testosterone and estrogen. d. Wolffian inhibiting hormone.
Answer:
Researchers believe that the size difference between male and female brains results from the influence of:
gender identity
Explanation:
individual difference would only allow such as no published journals by researcher to affirm the obvious difference in the brain size of male and female
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Answer:
"the genes on DNA get transcribed into RNA, which get translated into a protein"
Explanation:
The central dogma is an important principle to biology, explaining the flow of information from DNA to functions that the cell can carry out. The central dogma says DNA --> RNA --> protein. Proteins carry out most biological functions in cells and organisms.
Genes on DNA have to be copied into a message in the form of RNA. DNA and RNA use the same language, so the message is transcribed (i.e. copied). The RNA then takes this message to the protein synthesis machinery, which uses a different language. Therefore, the RNA has to be translated into protein sequences
"I really want to believe that my vague recollection of an incident that occurred at Disneyland as a preschooler is true, but that doesn’t mean that it is true." Which of the following critical thinking guidelines does this example illustrate?
a. examine the evidence
b. define your terms
c. don’t oversimplify
d. avoid emotional reasoning
Answer: Option D
Explanation:
Emotional reasoning is a cognitive process by which the person concludes that emotional reaction proved that something is true regardless of the observed evidence.
Example : A husband shows the caring nature towards her wife still she can judge her husband and say he is unfaithful because he is jealous.
It is a type of cognitive distortions. It is caused due to lack of self satisfaction and self fulfilling nature.
Alonzo graduates with a 3.8 GPA in Accounting from a New York university and receives offers of employment from three of the Big Four accounting firms. While considering his options, a mid-sized firm in California calls and offers him twice the starting salary of his top offer. The only caveat is he needs to show up at the Los Angeles office within the next week to start work immediately. Alonzo excitedly decides to take the California job. He refuses the other employment offers, breaks his lease in New York, sells or gives away most of his possessions, buys a new car, and heads for L.A. the next day. When he arrives at the Los Angeles office three days later, the firm apologizes and informs Alonzo that the position is no longer available due to the loss of a major client.
Answer:
Yes
Explanation:
Remaining part of the question
Based on these facts, does alonzo have a potential claim against the accounting firm?
Solution
As per the theory of Promissory estoppel a promise made by an employer or entity to an individual/entity or any other subject even without any formal consideration cannot breach the promise on any basis including the any incident causing sudden crisis in organization.
The same happened with Alonzo and hence he can claim against his employer on the basis of Promissory estoppel theory.
The scenario is about law, specifically contract law and the concept of promissory estoppel. Alonzo took significant action based on a job offer that was later withdrawn, and thus may have a valid claim for compensation.
Explanation:The situation Alonzo faces can be categorized under contract law. In this particular case, it seems that Alonzo might have a valid claim for promissory estoppel, a legal principle that stops a party from going back on a promise that led another party to act on that promise, suffering damages as a result.
Here, the California firm made a promise to Alonzo (employment), which he relied on to make significant life changes. The California firm did not follow through on their promise, resulting in damages for Alonzo (relocation expenses, lost opportunities). If Alonzo can prove these points in a court of law, he may be able to successfully claim compensation for his losses.
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The ecological perspective emphasizes the dynamic interactions between people and their environment. Gitterman (2014) explains that many of the problems faced by people " are outcomes of complex ecological chains that include attributes of the individual's ___________, ___________, ___________, ___________ and ___________ ___________.
Answer:
Psychology, social, communal, physical, economic and political
Explanation:
Gitterman (2014) explains that many of the problems faced by people " are outcomes of complex ecological chains that include attributes of the individual's, psychology, social, communal, physical, economic and political behaviours.
Answer:
The correct answer is "genetic, biophychosocial makeup, recreational resources general culture and subculture, social class and the overall polity"
Explanation:
According to the book of Alex Gitterman and Carel B. Germain "The Life Model of Social Work Practice. Advances in Theory and Practice", many problems that people face respect to ecology are determined by "attributes of the individual's genetic, biophychosocial makeup, recreational resources general culture and subculture, social class and the overall polity". In this book the authors explain how social pathologies are developed respect to the individual attributes and the ecological perspective of these pathologies.
Which of the following statements does not apply to the immunoproteasome:
A It is generated in response to interferon-gamma stimulation.
B It contains the nonpolymorphic MECL1 subunit.
C It contains the polymorphic LMP7 subunit.
D Ten per cent of the peptides generated are 8-9 residues in length.
E It exhibits both chymotrypsin-like and trypsin-like activities.
Answer:
Option D. Ten per cent of the peptides generated are 8-9 residues in length is the correct answer.
Explanation:
An efficient derived from constitutive proteasome is called immunoproteasome. Its expression is highly visible in immune cells. It has an important role in immune system which is to degrade proteins of viral origin and intracellular proteins into smaller proteins. (See image for more detailed explanation)
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Read each example and identify it with one of the mechanisms that influence gene pools.
----- 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.
1.Genetic drift
2.Gene flow
3. Mutation
4.Natural selection
Answer:
A zebra migrates to join a different herd of zebras. Gene flow
Competition for sunlight leads to taller trees. Natural Selection
The DNA of a snake changes to make its venom stronger. Mutation
A grass fire randomly sweeps through a population of buffalo and kills most of the animals. Genetic drift
Explanation:
Gene flow: Gene flow can be described as the transfer of genes or genetic variation from one population to another. Hence, the migration of a zebra to a different herd of zebras is a kind of gene flow.
Natural Selection: The phenomenon of natural selection favors those organisms which have better characteristics to survive in an environment. Hence, natural selection favours the taller plants.
Mutation: Mutation can be described as any change which occurs in the DNA of an organism. Hence, a change in the DNA of the snake is mutation.
Genetic Drift: Genetic drift is the change in the gene frequency of an area due to certain disastrous conditions such as a fire.
Answer:
A zebra migrates to join a different herd of zebras. Gene flow
Competition for sunlight leads to taller trees. Natural Selection
The DNA of a snake changes to make its venom stronger. Mutation
A grass fire randomly sweeps through a population of buffalo and kills most of the animals. Genetic drift
Explanation:
All of the following events occur during normal meiosis except _______. A. two haploid gametes fuse to form a diploid cell B. one diploid cell produces four haploid cells homologous C. chromosomes separate from one another D. during meiosis I sister chromatids separate from one another during meiosis II
Answer:
A. two haploid gametes fuse to form a diploid cell
Explanation:
Meiosis is a type of cell division. When a parent cell with "2n" chromosomes enters the process of meiosis, four daughter cells each with "n" chromosomes are formed. This occurs since homologous chromosomes separate from each other during anaphase-I. However, meiosis does not include the fusion of two haploid cells. The fusion of two haploid cells mainly occurs during the process of fertilization during which a haploid male gamete and a haploid female gamete fuse to form a diploid zygote.
All stated events occur in meiosis except the one stating that sister chromatids separate during Meiosis I. The separation of sister chromatids actually happens in Meiosis II, not Meiosis I.
Explanation:The process of meiosis involves several stages, each with distinct events. The main function of meiosis is to produce haploid gametes from a diploid cell. Specifically, one diploid cell divides to produce four haploid cells. Furthermore, chromosomes separate from each other which is a crucial event during meiosis.
However, the statement 'During meiosis I, sister chromatids separate from one another during meiosis II' is incorrect. In fact, the separation of sister chromatids occurs during anaphase of meiosis II, not meiosis I. Hence, all of the described events happen in the process of meiosis, except for sister chromatids separating during meiosis I.
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In fruit flies, the color of the eyes is sex-linked (on the X chromosome). A cross of the flies in the image will produce
a
100% white-eyed flies
b
100% of the females with white eyes, 50% of the males with white eyes.
c
100% red-eyed flies
d
100% of the females with red eyes, 100% of the males with white eyes.
A cross of the flies in the image will produce 100% of the females with red eyes, and 100% of the males with white eyes. The correct option is d.
What is crossing over?
If red eyes are represented by the R allele and white eyes by the r allele, then 100% of the females would have red eyes, whereas 100% of the males would have white eyes.
Fruit flies are one type of fly that exhibits traits associated with sex-linked genes. All of the males from the first generation of the cross will have white eyes, and 100% of the females will have red eyes.
The following genotypes and corresponding phenotypes will result from the cross:
Xr XR- red-eye, femaleXr XR - red-eye, femaleXrY - white eye, maleXrY - white-eye, maleTherefore, the correct option is d. 100% of the females with red eyes, and 100% of the males with white eyes.
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The question is incomplete. Your most probably complete question is given below: the missing image is added.
The primary source of the specificity of enzymes is ________. Select one: a. their locations within the cell b. their polarity, which matches that of their specific substrate c. their shape, which relates to the lock-and-key model d. their bonded transition metal, which is specific to the target substrate e. their delocalized electron cloud
Answer:
c. their shape, which relates to the lock-and-key model
Explanation:
The primary source of the specificity of enzymes is their shape, which relates to the lock-and-key model
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The primary source of the specificity of enzymes is their shape, which complies with the lock-and-key model, meaning the enzyme's three-dimensional structure is specifically matched to bind with its substrate.
The correct option is 'C'.
Enzymes are highly specific biomolecules that accelerate chemical reactions.
This specificity comes from the unique three-dimensional shape of the enzyme's active site, which is complementary to the structure of its specific substrate.
According to the lock-and-key model, the molecular shapes of the active site and the substrate are perfect matches, akin to a key fitting into a lock. This model emphasizes that the enzyme's structure is tailor-made to bind to its specific substrate, facilitating the chemical reaction.
Furthermore, the induced fit hypothesis suggests that while enzymes have a precise shape, they can also adjust slightly to ensure the perfect fit with the substrate, enhancing the enzyme's catalytic efficiency.
It is a model organism used to study various cell and developmental processes such as the growth of developing body parts in the right place and with the correct shape. It develops from a fertilized egg to an adult in a little over a week, and has been a favorite of geneticists for almost a century. Some of its cells have giant chromosomes whose banding patterns have been extremely helpful in classical genetic studies. Which organism is it?
Answer:
Drosophila melanogaster
Explanation:
Drosophila melanogaster or fruit fly is a fly species used as a model organism by geneticists and developmental biologists which helped them awarded eight Nobel prizes.
The studies on the role of genes in developmental biology and the study of the chromosomes obtained from the salivary glands called polytene chromosomes are the topic of research in the Drosophila.
Thus, Drosophila melanogaster is the correct answer.
Answer:
Drospohila.
Explanation:
The model organisms may be defined as the organisms that are well suited for the study of the biological phenomena. The model organisms have some special characteristics that are not present in other organisms.
The qualites of the model organisms that describe in the question clearly signifies that this model organism is Drosophila. The growth pattern and correct body shape is first studied in the Drosophila. The salivay glans of Drosophila consists of giant chromosomes.
Thus, the answer is Drosophila.
a DNA strand witha base sequence of ACTTCGCATG when replicated would yield a newly formed strand of the same base sequence true or false
True, a DNA strand is replicated to yield a new strand with the same base sequence. This ensures genetic consistency across cell generations. The base sequence ACTTCGCATG would remain the same in the replicated strand.
Explanation:The statement is true. When a DNA strand is replicated, the resulting strand has the same base sequence as the original strand. This happens through a process known as DNA replication. Let's take the DNA base sequence ACTTCGCATG as an example. During DNA replication, each base in the sequence pairs up with a complementary nucleotide: A with T, and C with G. Therefore, for the given DNA sequence, the replicated strand would also be ACTTCGCATG, albeit in a complementary manner. Thus, DNA replication ensures genetic consistency from one generation of cells to the next.
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Which one of these biomes is known for: - high temperature - high precipitation - lots of biodiversity - high rate of primary productivity
Answer:
Option C
Explanation:
Options for the question are -
a) Grassland
b) Tundra
c) Tropical Rain forest
d) Temperate
Solution -
Tropical rainforest also known as tropical wet forest and have higher rate of primary productivity as compared to any other biome because of the following reasons-
a) It has high precipitation which makes it an ideal place for plant communities.
b) It has adequate annual temperature
c) It has a year round growing season which fuel the plants growth
All these factors are not present altogether in any on the biome due to which the productivity and diversity of tropical biome is higher
Hence, option C is correct
In a typical pea experiment, two true-breeding plants with distinct traits of a single character are called the __________, and the offspring are called the __________, which will always be __________.
Answer:
Parental generation
F1 offsprings
Hybrid/heterozygous
Explanation:
A true breeding plant will always produce the same trait of a given gene when self-crossed. A truebreeding plant is also referred to as Homozygous because it contains identical alleles of a gene. Hence, they undergo meiosis or gamete formation to produce gametes containing the same allelic content.
When two truebreeding plants with two different traits for the same gene i.e. homozygous for different alleles of a gene, are crossed. They are referred to as the Parent or P generation. Their first offsprings called F1 (first filial) offsprings will possess a mixture or combination of the two parental alleles, hence, the F1 offsprings are called hybrids or are said to be heterozygous.
In Mendel's pea experiment, the true-breeding parent plants are called the P₁ generation, and the offspring are the F₁ generation, which are always heterozygous for the contrasting trait.
Explanation:In a typical pea experiment like those conducted by Gregor Mendel, two true-breeding plants with distinct traits of a single character are called the P₁ or the parental generation. These plants were homozygous, meaning they had two identical alleles for the trait he was studying. The offspring produced from the cross of these P₁ plants are referred to as the F₁, or the first filial generation. These F₁ plants, as a result of the P₁ cross, will always be heterozygous for the contrasting trait, which means that genetically, they carry different alleles for the gene under consideration.
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What is the name of the endocrine mode of reflex stimulation that releases hormone(s) due to direct stimulation from changing levels of nutrients or ions in the blood?
Answer: Humoral Stimulation
Explanation:
Humoral stimulus refers to the control of hormone release in response to changes in extracellular fluids. Humoral stimulus is also as result of reflex stimulation that releases hormone due to direct stimulation from changing levels of nutrients or ions in the blood, such as the ion concentration in the blood. Some hormones are secreted in direct response to changing blood levels of ions and nutrients.
You observe continuous variation in tail length in a wild population of rats. Describe an experiment to determine whether this variation is an example of variable expressivity or continuous variation?
Answer:
When you grab a wild population of rats, you need to follow the scientific method as it is, and by doing that, you can discover if it is a variable expressivity or a continuous variation.
Explanation:
First, you need to check the species, to see their patterns of length of tail, because that's mostly what you want to know. After stablishing this pattern, you'll check the variability of their variation on different generations. For example, you pick up a rat that is aged a month, and a rat that is aged 3 months, and then compare them to one another. After you've done this lots of times, you can check if this variable is just a random one, or if it is continuous throughout the generations.
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Different genes are activated in the blood cell than in the liver cell.
Explanation:
All the cells in the body contain the same number of genes and genetic material DNA but not all genes are expressed in a single cell.
The highly regulated process of the genes in molecular biology promotes the expression of particular gene required.
Signals from the cell environment activate the transcription factor that binds to regulatory regions of the gene, hence transcribing and making proteins for the same.
The genes for both blood cell and the liver are different but will be present in all the somatic cells, the regulatory mechanism will choose the required gene to be transcribed.
Archaea frequently inhabit the guts of animals that consume foods rich in cellulose. These prokaryotes assist in the digestion of cellulose and release "marsh gas" as a waste product. Archaea in the same group live in anaerobic muck in wetlands. These archaea would be considered _____.
a.)methanogens
b.)extreme halophiles
c.)sulfur bacteria
d.)extreme thermophiles
Answer:
Methanogens
Explanation
Archaea is one of the three major domains of living organisms. It contains single celled organisms that lack membrane bound organelles hence they are prokaryotes.
Methanogens are archaea that frequently inhibit the guts of animals that consume foods rich in cellulose such as cows.They breakdown the cellulose releasing marsh gas as a waste product.
They also live in anaerobic muck in wetlands.
In the study of psychopathology, researchers must often rely on ________, which are people's own accounts of their internal states and experiences.
Answer:
SELF-REPORTS
Explanation:
Self-report surveys or
questionnaires have its participants
show their extent of subjective well
being, by answering to items based
on a number that shows their
feeling
Self-report scales to express the
happiness-how people classify
their own happiness extents on
self-report surveys. People answer
to numbered scales to show their
extent of satisfaction, positive feelings, and absence of negative feelings.
In the pentose phosphate shunt, glucose 6-phosphate is oxidized to 6-phosphogluconate, which is then decarboxylated to ribulose 5-phosphate. What is the main metabolic role of this pathway?
The main metabolic role of this pathway is the production of NADPH.
We can arrive at this answer because:
All metabolic pathways have very important biological roles within an organism.These pathways are formed by a series of reactions that transform a molecule into another essential molecule for the body, usually an energetic molecule or a carbonic compound.In the case of the pentose phosphate pathway, the main role is to supply NADPH molecules to the body, which is a very energetic molecule that serves as a hydrogen donor coenzyme in other metabolic pathways.In addition, pentose phosphate shunt is a blood glucose regulatory pathway that is essential for the proper functioning of the body.
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Answer:
1) Pentose phosphate shunt mainly provides NADPH to the body.
2) It also produces ribose 5-phosphate, which is needed for nucleotide biosynthesis.
Explanation:
1) Pentose phosphate shunt provides NADPH to the body which has the following important uses in the body:
NADPH is required for the reductive biosynthesis of fatty acids, cholesterol, and steroid hormones.NADPH is also required for Nitric oxide (NO) synthesis. NO causes vasodilation and also acts as a neurotransmitter.NADPH is also required in the cytochrome P450 monooxygenase system which is involved in drug metabolism in the body. Pentose phosphate shunt is the only way through which red blood cells (RBCs) get their NADPH. This NADPH protects RBCs from reactive oxygen species.2) This pathway also provides ribose 5-phosphate, which is produced during this pathway. This ribose 5-phosphate then goes to the pathways involved in nucleotide biosynthesis.
During the hyperpolarization phase of the action potential, when the membrane potential is more negative than the resting membrane potential, what happens to voltage-gated ion channels?
Answer:
Hyperpolarization occurs when the change in a cell's membrane potential, due to the opening of potassium channels, (K+ migrate outside and Cl- migrates inside) makes it more negative and Na+ channels close.
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Answer:
10. True
11. how behaviour minimizes competition
12. True
Explanation:
10. Trophic cascade can be defined s an ecological term which refers to as being triggered by the addition or removal of top predators and involving reciprocal changes in the relative populations of predator and prey through a food chain, which often results in dramatic changes in ecosystem structure and nutrient cycling.
11. how behaviour minimizes competition
12. Commensalism is the interaction between populations in which one gains from the interaction and the other is unaffected. for example, an interaction between denitrifier and annamox bacteria