Answer:
Nonspecific defenses include anatomic barriers, inhibitors, phagocytosis, fever, inflammation, and IFN. Specific defenses include antibody and cell-mediated immunity.
Explanation:
Select all that apply.
When determining the growth rate, you need to know
natality
mortality
population density
immigration rate
emigration rate
carrying capacity
Answer:
Natality
Mortality
Immigration Rate
Emigration Rate
Answer:
Natality(birth rate)
Mortality(death rate)
immigration rate(the rate of moving in a popul.)
Emigration rate(the rate of moving in a popul.)
Explanation:
Match each characteristic with the correct animal
Answer:
1 honeybee
2 scorpion
3 lizard
4 frog
5 ostrich
6 goldfish
7 bear
8 clam
will an object denser than water float or sink
Answer: An object denser than water will sink in water.
Explanation: The ability of an object to float or sink in water depends on its density. An object that is denser or heavier than water will sink in water while an object that is less dense or lighter than water will float in water. For example a piece of stone will sink in water because it is denser than water while a plastic container will float in water because it is less dense than water.
Why is it necessary for the genetic material in a cell to exist in chromatin form during normal cellular activity, and not in chromosome form?
Answer/ Explanation:
Chromosomes are highly condensed and compact structures. This means the chromatin (protein plus DNA complex) is hierarchically organised into tight structures through progressive folding of chromatin.
However, this is only the case during cell division. When the cell is in interphase and performing its normal duties, it is in a much more decondensed structure. This is because in order for transcription to occur, the cell needs to be able to access the information in the DNA. For example, transcription factors need to bind at their gene promoters to promote transcription.
When the DNA is folded into chromosomes, cellular factors do not have access to the genetic information due to the physical constraints of the chromatin structure.
what must occur during fertilization in humans in order to produce a male child
Answer:
The Dad must give a Y chromosome
Explanation:
To have a male child there must be an X and Y chromosome
Answer:
The Dad must give a Y chromosome
Explanation:
Which statement best describes the energy in this
system?
A.The potential energy in the system is greatest at X.
B.The kinetic energy in the system is greatest at X.
C.Total energy in the system decreases as the ball moves from X to Y.
D.Total energy in the system increases as the ball moves from X to Y.
Answer:
A-The potential energy in the system is greatest at X.
Explanation:
The potential energy in the system is greatest at X.
Answer:
A-The potential energy in the system is greatest at X.
explain
The potential energy in the system is greatest at X.
What is the study of thermodynamics?
Thermodynamics is the study of heat flow.
a p e x
The study of heat flow. Therefore option A is correct.
Thermodynamics is the scientific study of the relationship between heat and energy transfer within a system.
It explores the principles that govern the conversion of energy and the transfer of heat between different substances.
Thermodynamics delves into how thermal energy flows from a higher-temperature region to a lower-temperature region and how it can be harnessed to perform work.
This field of study is crucial for understanding the behavior of matter and energy, as well as for designing and analyzing various processes and systems, such as engines, power plants, and refrigeration systems.
Thermodynamics is foundational to physics and engineering and has broad applications in numerous scientific and technological areas.
Therefore option A is correct.
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Your question is incomplete, but most probably your full question was.
What is the study of thermodynamics?
A. The study of heat flow
B. The study of the nucleus
C. The study of electric fields
D. The study of organic matter
UIZ
Similarities Among Organisms
Reading Off
Which statement is accurate about the number of genes in different species of living things?
O The more complex a living thing the more chromosomes it is likely to have
The more complex a living thing the fewer chromosomes it is likely to have
O Amouse and a human have about the same number of genes.
O All living things have about the same number of genes.
Please help. I will give brainliest.
Answer:
The correct option is C) A mouse and a human have about the same number of genes.
Explanation:
The technique of genetic sequencing has enable us to learn and compare thee genomes of different organisms. Genome sequencing proves that the genome of the humans and mice are about 99 percent similar. The number of genes in the mouse genome and the genome of humans is almost equal.
Other options, like option A, cannot be true because many complex organisms have fewer chromosomes than other organisms. For example, there are many simple plants which have more number of chromosomes than the complex humans.
ABO blood grouping of humans is an example of co-dominance. Homozygotes (IAIA and 1815) express either the A or the B
phenotype. Heterozygotes (1215) express both phenotypes equally and the IAB individual has blood type AB. Blood type O is
the result of the genotype 1°1°: this blood type is considered the recessive trait and is the recessive allele for blood type.
Consider the genetic cross for blood type of these two parents. The father is type A and the mother is type B. Both have the
recessive allele for blood type 0. What is the probability that these parents will have offspring with type A blood?
red flowered plant and white flouvared lant is an ayamole
Answer:
In ABO blood grouping of humans, when the genotype that determines the type of blood contains the recessive O gene in the parents, a father with a blood type A and a mother with a type B will have a 25% chance of having a offspring with type A blood.
Explanation:
Blood type is determined by the presence or absence of surface antigens A and B.
Type A contains antigen A and its genotype can be A | A or A | O. Type B contains the B antigen, whose genotype can be B | B or B | O. Blood type AB contains both antigens and a single genotypic expression A | B Type O blood lacks surface antigens.In the case raised, the parents, type A (A | O) and B (B | O) will have an offspring:
Alleles A O
B A|B B|O
O A|A O|O
This shows that the chances of having a offspring with a blood type A is 25%.
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Answer:
25%
Explanation:
i jus know
In the natural carbon cycle, the ocean influences climate by controlling CO2 levels primarily through ________________ and _______________.
Answer:
In the natural carbon cycle, the ocean influences climate by controlling CO2 levels primarily through biological activity and massive geological events.
Explanation:
Carbon flows in an interchange across each reservoir called the carbon cycle, which has gradual and rapid components. Any cycle shift which moves carbon from one reservoir places more carbon in another reservoirs.Changes that bring carbon dioxide into the environment contribute to higher Earth temperatures.
The carbon cycle appears to keep the balance over the long term that prohibits all Earth's carbon from atmospheric entry or being deposited entirely in rocks. That equilibrium helps to keep the temperature on Earth fairly stable, just like a thermostat.
the cause of the phases of the moon is a cycle that is close to blank long
28 days
It takes our Moon about 28 days to complete one cycle of phases (from new Moon to new Moon).
Answer:
28 days
Explanation:
Question 6(Multiple Choice Worth 2 points)
Which of the following is a common source of groundwater pollution?
Oil slicks
Erosion along riverbanks
Spraying crop fields with pesticides
Throwing used beverage containers into a lake
The common source of groundwater pollution is done by spraying crop fields with pesticides.
Answer: Option C
Explanation:
The ground water pollution is the mixing up of pollutant in the water which lies below the ground and is potable in nature. This pollution has the commonest source of pollutant by the pesticides.
The crop fields when sprayed for pests with pesticides in order to kill the pests on crop, contaminates the crop as well as the ground at the same time. These are its disadvantages.
The ground being contaminated on ploughing or by leaching gets the pollutant into the water table. Plant on the other hand on decaying leaves the pesticide into the ground which in turns goes into the under ground water.
Spraying crop fields with pesticides is the common source of groundwater pollution.
Explanation:
Groundwater is naturally found in aquifers or geological water structures which stores water deep in the ground.
The most common contaminant of groundwater is spillage and seepage of excessive chemicals from industries and agriculture.
Agriculture which is done in large scale in many parts of the world implies the use of a large number of chemicals in the form of pesticides, weedicides, fertilizers, growth promoters etc. these are either sprayed as foliage sprays or added to the ground directly for the roots to absorb.
The excess chemicals applied to enter the ground surface and mix with the surface water and enter into the ground and mix with the groundwater. Thus the entire natural aquifer in that area becomes easily contaminated with chemicals.
A cruise ship makes its way from one island to another. The ship is in motion compared with which reference point
Answer:
Light house
Explanation:
When a cruise ship makes its way from one island to another. The ship is in motion is always compared with the a light house on a near by island as it serves as a guiding hand and acts as a reference point for ships coming from different island.
Regardless of an object's position in space, its _______ remains constant.
mass
weight
Answer:
Mass
Explanation:
on usatestprep
How far could you speed walk in 10 minutes based on your speed for the 10 m trial show your work?
The Earth's rotation shapes the direction that wind blows. This is known as
the coriolis effect
convection
PER
FEDERABERLER
ERREFERENT
FEST
the doldrums
revolution
Explanation:
Coriolis effect is a kind of force that acts on a mass by using a inertial force.When earth rotates in its axis, the air that covers the earth also flows in a direction which is mainly caused by Coriolis effect.When the difference between pressure increases,wind flow becomes strong.This force acts at right angle of direction to pressure gradient force,which causes movement of wind in northern hemisphere and left in southern direction.During low pressure, the wind flows in a clock wise manner and during high pressure, it moves in anti clock wise manner.
Question: What is the effect of day length on plant
growth?
Hypothesis: Plants will grow more when the day is
longer
Describe the experiment you would use to test the
hypothesis. Be sure to include variables as well as
experimental and control groups.
Answer:
The experiment can be done as follows:
Some plants can be grown in conditions where they are given maximum amount of day light. Others might be kept in the day time for a period of few hours and then be places inside a room where no light can come. The plants which receive medium amount of light will be the control group of this experiment. In the end, the growth of the plants in the experimental group shall be compared with the control group to compare the results.
100 points and brainliest
Name and Describe the 3 Classifications of Protists and What are three different ways that you can describe a protist?
Answer:
Protists are classified into three categories on the basis of their mode nutrition. They are as under.
1) Algae : Algae is made up of single cell having true nucleus. They are found in those places where water is present. They make their own food like plants.
2) Protozoa : Protozoa is also made of one cell and have true nucleus. They feed on another animals.
3) Fungus like protists : It is a type of protists which feeds on dead bodies of plants and animals.
1) Protists are organisms which are made up of single cell.
2) Protists are eukaryotes i. e. having true nucleus.
3) Protist have some characteristics of animals, plants and fungus.
When too much water has accumulated
Answer:
Too much water accumulation leads to a condition called as water intoxication.
Explanation:
Drinking too much water leads to a condition called water intoxication or water poisoning. This happens because the concentration of water becomes such abundant in a person's body that it dilutes the concentration of electrolytes like sodium in the blood. This causes a disruption in the functioning of the brain hence leading to the death of the person. Various such scenarios have been observed in athletes drinking too much water.
Global economic development has led to an increase in the use of fossil fuels. As a result, greenhouse gas emissions have also increased. To fight this problem, some governments require businesses to pay fines if they do not comply with strict environmental regulations. Which of the following could be a negative result of this solution?
A) Greenhouse gas emissions might decrease while fossil fuel use increases.
B) Businesses might invest in places that lack environmental regulations.
C) Greenhouse gas emissions might increase while fossil fuel use decreases.
D) Businesses might profit from complying with environmental regulations.
B) Businesses might invest in places that lack environmental regulations.
Explanation:
Certain gases in the atmosphere has the ability to trap the radiating heat from the earth and keep the atmosphere warm even during the night.These gases are called greenhouse gases.Carbon dioxide, methane etc are some example of green house gases. These gases are added to the atmosphere in large amounts due to burning of fossil fuel.Though green house gases are very important in maintaining the temperature of the Earth but if their percentage increases in the atmosphere then they may contribute to global warming.Global warming is a environmental havoc and is leading to global climate change and melting of ice caps.To manage this problem it is very necessary to reduce the increasing green house gases.To achieve this goal governments of various nation has formulated rules according to which, the industries that do not have efficient machinery to reduce consumption of fossil fuel and reduce green house gas emission are charged fines.But since these rules are not implemented in all places , the industries choose to establish business in those places where they are not forced to comply with strict environmental rules. So, there is a negative impact on the economy of the nation that have strict regulations to conserve environment.Answer: alt answer: there would be a financial incentive to protect the environment
Explanation:
During cellular respiration, the bonds of food molecules are broken, so energy can be released to fuel other cellular processes. In order for this to occur, which of the following statements must be true?
A.
The new compounds that are formed must be more complex than the food molecules that were broken down.
B.
New compounds with lower-energy bonds must be formed when the high-energy bonds in food molecules are broken.
C.
New compounds with higher-energy bonds must be formed when the low-energy bonds in food molecules are broken.
D.
The energy in the new compounds that are formed must be equal to the energy in the bonds of the food molecules.
Answer:
Chemical potential energy is stored in glucose's carbohydrate bonds, and these bonds can be broken to fuel the production of ATP. Energy in ATP can then be used to perform cellular work.Explanation:
Letter:B
During cellular respiration, high-energy bonds in food molecules are broken to form new compounds with lower-energy bonds, like ATP. The energy released during this process powers various cell functions. The correct option is B.
Explanation:In the process of cellular respiration, the correct option is B: New compounds with lower-energy bonds must be formed when the high-energy bonds in food molecules are broken. This is because energy is released when high-energy bonds in glucose or other food molecules are broken during cellular respiration. The energy that is released is then used to synthesize ATP, a molecule with lower-energy bonds. ATP can then be used by the cell for energy-demanding processes. ATP serves as the 'energy currency' of the cell, providing a ready source of energy that powers numerous cellular functions.
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plants can’t walk and animals can’t use the sun to make energy. agree/disagree? why?
Answer:
Agree, because plants cannot walk and have roots in the dirt to help them grow as well as photosynthsis. Animals can't do photosynthsis like plants can, animals have to eat to gain energy as well as sleeping.
Explanation:
What are some facts about the marine ecosystem?
Answer:
The Marine Ecosystem is the Largest Ecosystem on Earth
The oceans alone cover about 70% of the Earth's surface or 140,000,000 square miles. The average ocean depth is about 12,000 feet and the deepest point is the Mariana Trench in the Pacific Ocean with a depth of about 32,800 feet.
Explanation:
Which statement best describes the crust?
Answer:
Outermost layer of the Earth
Explanation:
The crust is Earth's outermost layer, comprised of continental and oceanic types, with varying densities and compositions. It is the site of earthquakes due to its brittle nature and contains valuable mineral resources and fossil fuels.
The crust is the outermost layer of Earth, characterized by its low density and higher concentrations of lighter elements like silicon, aluminum, calcium, sodium, and potassium. It forms only about 1 percent of Earth's mass and 2 percent of its volume. There are two primary types of crust: the continental crust, which is thicker, less dense, and similar in composition to granite; and the oceanic crust, which is thinner, denser, and similar in composition to basalt. The crust is where we find the majority of earthquakes, which generally occur in the uppermost, more brittle layers.
The lithosphere includes the crust and the uppermost part of the mantle, with the crust itself being broken up into tectonic plates that float on the mantle and move a few centimetres per year. This motion can create new crust at mid-ocean ridges and recycle old crust back into the mantle at subduction zones. The crust is where we find all of our mineral resources and fossil fuels, making it of great interest for human activities.
Examine the leaves of a palm tree.
Which statement most specifically describes a palm tree?
Palm trees are dicots.
Palm trees are monocots.
Palm trees are angiosperms.
Palm trees are flowering plants.
Answer:
b
Expla!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer: the correct answer is b.
Explanation: i don’t know how to explain it but i found it in my notes i wrote down
Part of stratosphere contains a gas that blocks about 99% of the dangerous ultraviolet rays that reach the Earth from the Sun.
Image courtesy of the U.S. EPA
This portion of the stratosphere if known as the _______.
A.
tropopause
B.
mesosphere
C.
thermosphere
D.
ozone layer
Ozone layer is the correct answer
Remy is smoking too closely to a building that manufactures fertilizer. When he puts out his cigarette near the hazardous waste, it sparks a fire because the fertilizer is flammable. What kind of hazard did the chemical waste cause?
The chemical waste from the fertilizer manufacturing plant caused a fire hazard in this scenario.
Flammability: The fact that the chemical waste from the fertilizer manufacturing plant caught fire when Remy put out his cigarette indicates that the waste is flammable. Flammable materials are substances that can easily ignite and sustain combustion when exposed to a heat source or open flame.
Ignition Source: Remy's cigarette butt, acting as an ignition source, was sufficient to trigger a fire in the presence of the flammable chemical waste.
Fire Hazard: The term "fire hazard" refers to the potential for a fire to occur due to the presence of materials that can easily catch fire or support combustion. In this case, the chemical waste from the fertilizer plant posed a fire hazard, and its ignition led to a fire.
It's important to handle and dispose of flammable materials and chemical waste in a safe and regulated manner to prevent such incidents and minimize the risk of fires.
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Pictured above is the brain viewed at midline at 3 months of age. Differentiate between the functions of the thalamus and the pons of a human brain.
A) The pons plays a key role in sleep and dreaming. The thalamus assists with the storage of long term memories.
B) The pons controls our reactions out of fear and how we react to certain stimuli. The thalamus helps us maintain a constant body temperature.
C) The pons is responsible for relaying messages between the two hemispheres of the brain.
The thalamus plays a role in consciousness and sleep.
D) The pons helps relay messages between the cortex and the cerebellum. The thalamus directs different sensory information to the different parts and lobes of the cortex.
Answer:
The correct statement is Option D) The pons helps relay messages between the cortex and the cerebellum. The thalamus directs different sensory information to the different parts and lobes of the cortex.
Explanation:
The thalamus is a part of brain which is present between two parts of the brain i. e. cerebral cortex and the midbrain. The function of thalamus is to carry relay motor signals to cerebral cortex while pons is a part of hind brain that carry relay signals from the forebrain to the cerebellum.
Answer:
I think option D) is the answer just took the test on usa test prep.
Which statement best describes the cycling of carbon between the atmosphere and hydrosphere?
A. Trees and plants releasing carbon through respiration
B. Volcanic activity releasing carbon into the atmosphere
C. Movement of gases from the ocean's surface by diffusion
D. Releasing of carbon into the soil when organisms decay
Answer:
D
Explanation:
it would be d as when organisms or plants die they would decay and the energy and nutrients and carbon would then be broken down and absorbed by the soil
The statement best describes the cycling of carbon between the atmosphere and hydrosphere is " Movement of gases from the ocean's surface by diffusion "
What is hydrosphere?A Hydrosphere is the total amount of water present on a planet.
A Hydrosphere include water in all form that is in solid, liquid and gas.
Example: Water present in lake, river ,ocean etc.
Water present in ice form on the earth.
Water present in vapor form.
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• What do homeobox genes code for in animals?
Homeobox genes contain a particular DNA sequence that provides instructions for making a string of 60 protein building blocks (amino acids) known as the homeodomain. Most homeodomain-containing proteins act as transcription factors, which means they bind to and control the activity of other genes.