________ exists when the immune system does not respond to a particular antigen.

Answers

Answer 1

Answer:

tolerance exists when the immune system does not respond to a particular antigen.


Related Questions

25 POINTS!! Survival of the Fittest is due to having the possession of what?

1: Adaptation


2: Competition


3: Use and disuse


4: Overproduction

Answers

Survival of the Fittest is due to having possession of Adaptations (Option 1).

What is an adaptation?

An adaptation is a type of feature/trait in an organism that confers an advantage against other organisms in an environment.

Adaptations are fundamental to face challenging environmental conditions for different organisms.

The main evolutionary force by which different adaptations are favored in nature is natural selection.

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An organism must have provided all of the following to survive EXCEPT

Answers

Answer:

The answer is the one that is not on this list

List of criteria for a living organism:

1.) Can Reproduce

2.) Goes through homeostasis

3.) Needs Energy

4.) Is organized/ has cells

5.) Grows and Develops

6.) Responds to stimuli.

Explanation:

Will mark brainliest if the answer is correct: ""how does the presence of reptilian and mammalian nephrons provide evidence for the relatedness of birds and other vertebrates?""

Answers

Answer:

Nephrons in birds, mammals, and reptiles are all extremely similar, more so than other structures in the bodies of different species, solidifying the relatedness through similarity.

Explanation:

Birds can be said to have "mammal-like" nephrons from the number of loops and overall structure of their kidneys, which, although they look very different, serve the same purpose and do it in largely the same way. Reptiles also have mammal-like nephrons, and it can be assumed that this evolutionary trait was kept because the specific structure of the nephrons is generally the most efficient.

The presence of reptilian and mammalian nephrons provide evidence for the relatedness of birds and other vertebrates because the nephrons are similar to that of reptiles and mammals and other birds and vertebrates.

What are nephrons?

Nephrons are the functional unit of the kidney. There are many nephrons present in a kidney, it contains tubules and corpuscles.

The formation of urination is done by nephrons, the three functions of nephrons are filtration, reabsorption and secretion.

Thus, the presence of reptilian and mammalian nephrons provide evidence for the relatedness of birds and other vertebrates because the nephrons are similar to that of reptiles and mammals and other birds and vertebrates.

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One support of the behavioral perspective is that it is backed by strong and extensive research. please select the best answer from the choices provided t f

Answers

The statement one support of the behavioral perspective is that it is backed by strong and extensive research is definitely true.

What do you mean by Behavioral perspective?

Behavioral perspective may be defined as the process of all acting throughout life as a result of some form of motivation or incentive.

The behavioral perspective always deals with the behavior of an individual with respect to any stimulus, which may be directly or indirectly associated with that individual.

Therefore, statement one support of the behavioral perspective is that it is backed by strong and extensive research is definitely true.

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How is a cell like a system

Answers

Answer:

The metabolic activities in a cell such as respiration, and biochemical reactions are one of the major factors resulting in it being a system because all the organelles have a specific function.

Explanation:

hope this helps.

What are the horticultural advantages of producing plants by cuttings rather than from seeds? Can you think of any disadvantages?​

Answers

.Propagating a plant by cuttings will allow you to keep the special characteristics of that plant. Plants grown from seed will often be different from the parent plant and from each other. Propagating a new plant via cuttings avoids the difficulties of propagating by seed.

Disadvantages of propagating stem cuttings are: You will get a lack of genetic diversity and you may potentially increase Insect and Disease weakness in the new plant.

Which of the following is an example of a phenotype?

Answers

Answer:

A phenotype is the physical definition of you, what people can see. For instance, when you take a picture, people can see your phenotype through your eye.

Propose an experiment to test the rate of meat digestion in animals with differing amounts of the enzyme pepsin in their digestive tracts. Be sure to include the independent and dependent variables, along with the specific procedure and materials to be used.

Answers

The experiment to test the rate of digestion of meat in animals with different amounts of the enzyme pepsin in their digestive tracts could be the test of true intestinal digestibility of meats used in diets for carnivores.

Digestibility of meats

Protein digestibility in pepsin supernatant is one of the most used enzymatic methods when evaluating the quality of protein of animal origin, being internationally recognized by the Association of Official Analytical Chemists.

With this information, we can conclude that the experiment to test the digestion rate of meats in animals with different amounts of the enzyme pepsin in their digestive tracts could be the test of the true intestinal digestibility of meats used in diets for carnivores.

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We have to finish dividing the cytoplasm and then back to work. Can’t wait to get back to normal

Answers

The cell cycle is a process characterized by finishing when dividing the cytoplasm and then the daughter cells back to work.

What is the cell cycle?

The cell cycle is a series of cellular events that undergo a cell from its formation to its division.

The cell cycle can be divided into an interphase and a mitotic (M) phase, which ends with a process called cytokinesis.

The cytokinesis refers to the division of the cytoplasm, which is required to form two daughter cells.

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2) The motion of the Earth is modeled here as it moves on its axis and around the Sun Which of these statements correctly identifies how the illustration supports the concepts of seasons on Earth? Select
ALL that apply
A) The tilt of the Earth is responsible for the seasons
B) The rotation of the Earth is responsible for the seasons
C) The proximity of the Earth to the Sun is responsible for the seasons
D) The revolution of the Earth around the sun is responsible for the seasons
E) The intensity of the sunlight on Earth is different as the Earth revolves around the sun
O USATestprep, LLC 2021, All Rights and

Answers

Obliquity or tilt is the inclination angle of the Earth's axis. It is responsible for seasonal changes. The correct option is A) The tilt of the Earth is responsible for the seasons.

What is the Earth's obliquity -tilt-?

The term obliquity or tilt refers to the inclination of the axis of the Earth. The plane in which the Earth orbits around the sun is not orthogonal to the Earth’s axis of rotation. The axis has an inclination angle called ecliptic obliquity.

Obliquity is a determinant of seasons' existence. Thanks to this inclination in the axis of the Earth there are seasons. If tilt would equal cero, there would not be any season or temperature change in different regions of the Earth. So tilt becomes a significant factor, especially for high latitude areas.

Obliquity is one of the three Milankovitch cycles, together with precession and eccentricity. These are used to explain natural climatic changes through the history of the Earth.

The correct option is A). The tilt of the Earth is responsible for the seasons.

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Answer:

the answer is A

Explanation: Reason being because only the tilt is responsible for the seasons.

In the guinea pig, black coat (B) is dominant over white coat (b).

Answers

Answer:

what's the question

Explanation:

so I can give u a answer


A population of insects is sprayed with a new insecticide. Most of the
insects are killed but a few survive. In the next generation, many more of the
insects are unaffected by the insecticide. Which of the following BEST
explains these results?

Answers

Answer: This shows that over time, some insects can become "pesticide-resistant" meaning that pesticides don't affect them anymore. And this only happens every few generations. Therefore, each generation is being naturally selected and accumulating variations that make them resist the chemicals. This shows that each cockroach's genes are changing to give them variation from the rest of the population.

I hope this helps!

Modify adenosine triphosphate (atp) to give the remaining product of atp hydrolysis

Answers

In ATP hydrolysis, ATP is converted into adenosine diphosphate (ADP).

What is ATP hydrolysis?

When one phosphate is removed from ATP molecule by breaking a phosphoanhydride bond. This process is called hydrolysis in which energy is released, and ATP is converted into adenosine diphosphate (ADP).

So we can conclude that in ATP hydrolysis, ATP is converted into adenosine diphosphate (ADP).

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During ATP hydrolysis, the molecules of ATP get transformed majorly into the ADP and also in the AMP.

What do you mean by ATP hydrolysis?

ATP hydrolysis may be defined as the process through which the phosphates groups are removed from ATP to synthesize ADP or AMP. This process is exothermic in nature.

The energy is released during the breakdown of phosphoanhydride bonds.  The process of ATP hydrolysis is the catabolic reaction.

Therefore, during ATP hydrolysis, the molecules of ATP get transformed majorly into the ADP and also in the AMP.

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Based on your observations, which part of the radish plant controls the
plant’s phototropism? Support your answer.

Answers

Answer:

you are asked to write your laboratory report right?

Explanation:

we need to see the laboratory experiment to answer this question. But according to my search, the answer may be the following:

Stems in these plants exhibit positive phototropism and grow in the direction of a light source. Photoreceptors in plant cells detect light, and plant hormones, such as auxins, are directed to the side of the stem that is furthermost from the light.

The mutual interdependence that characterizes oligopoly arises because.

Answers

We can confirm that the mutual interdependence that characterizes oligopoly arises because the output for a given market is being generated by a small group of companies.

What is oligopoly?

Oligopoly is when the market for a given product is controlled by only a few of the companies that create said product. This situation can have benefits as well as drawbacks. A benefit would be increased product variation, providing more choices for consumers, while a drawback would be a lack of competition to keep prices low.

Therefore, we can confirm that the mutual interdependence that characterizes oligopoly arises because the output for a given market is being generated by a small group of companies.

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In chemiosmosis in mitochondria, protons flow from the intermembrane space into the matrix, whereas in chemiosmosis in chloroplasts, protons flow from:.

Answers

Answer:

In mitochondria, chemiosmosis translocates protons from the matrix into the intermembrane space, whereas in chloroplasts, chemiosmosis translocates protons from the stroma to the . the matrix to the stroma

Explanation:

Have you ever wondered how you hear sound? sound waves travel through your outer ear, where _________________ send the vibrations to the inner ear.

Answers

The eardrum send the vibrations to the inner ear

Which reaction would occur at the anode in a voltaic cell?.

Answers

Oxidation is the type of reaction which takes place at the anode in a voltaic cell.

What is Oxidation?

This is defined as a process in which an electron is removed from a molecule during a chemical reaction.

The anode is the negative electrode in a voltaic cell and is where oxidation reaction takes place.

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The parental male mutant trait is______? the parental female mutant trait is________?.

Answers

The parental male mutant trait is sepia eyes.The parental female mutant trait is vestigial wings.

What is a Mutant trait?

This is defined as specific characteristics an organism exhibits as a result of new genetic characters.

The two traits are recessive with the sepia eyes being the parental male mutant trait and the vestigial wings as parental female mutant trait in this scenario.

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Why doesn't a gummy bear grow as much in sugar water as it does in normal water?

Answers

Salt molecules are much smaller than sugar molecules, so more of them will dissolve in water.

Hope this helps<3

Answer:

In comparison to the gelatin molecules in the candy, salt or sugar ions in water are significantly smaller. Water molecules go to a location with more solute to balance things out due to osmosis. The problem is that the water is trapped inside the candy and cannot escape. Because the Gummy Bear can't get any smaller, it keeps the same size.

why was soil in wheat farms so much more vulnerable to erosion?

Answers

Explanation: The potential soil erosion increases if the soil has no or very little vegetative cover of plants/grass and/or crop residues. Plant and residue cover protects the soil from rain impact and splashes from it. It tends to slow down the movement of runoff water and allows excess surface water to infiltrate.

I hope this helps you! Have a nice day or night!!

Which is NOT true about an animal life cycle?
O A) Most animals spend the majority of their life as diploid organisms
B) Fertilization occurs when a sperm and an egg fuse
C) The gametophyte stage is followed by the sporophyte stage
D) The zygote that forms develops into an embryo

Answers

It’s not B hope it helps a bit

What is the primary use of nitrogen in living things?
A. To make fats.
B. To make energy.
C. To make sugars.
D. To make proteins.

Answers

Answer:

D. to make proteins

Explanation:

Nitrogen is essential for all living things because it is a major part of amino acids, which are the building blocks of proteins and of nucleic acids such as DNA

The three main types of food molecules are carbohydrates, proteins and fats.

a) For each of these substances, give three examples of foods and where you would find them.

b) State what each substance is used for in the body.​

Answers

carbohydrates: (ex) bread, pasta, potatoes.
carbohydrates are used as a source of short term energy

proteins: (ex) lean meat, eggs, dairy products.
proteins are used to build muscles and organs, to be stored as fat, and to be burned as energy

fats: (ex) fish and seafood, vegetable oils, and nuts.
fats store energy, insulate us and protect our vital organs

How many times would Earth rotate on its axis during one revolution of the sun?

Answers

The Earth will perform 366.25 rotations per revolution about the Sun.

What is Revolution?

This is defined as the motion around the Sun along its orbit which is common with planets such as the Earth.

The Earth rotates 366.25 times around the Sun and which is equivalent to a calendar year which is used for time keeping.

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Answer:

365 days (1 year)

Explanation:

Revolution takes 1 year (365 days) while a rotating takes 24 hours (1 day). Don't mix them up!!

Hope this helped!!

Which drug class is used to slow the movement of gi contents, causing a decreased ability for muscles to contract?.

Answers

Answer:

Anticholinergic drugs are common ingredients in antidiarrheal medications because they significantly decrease intestinal motility and secretions.

Anticholinergics drug class is used to slow the movement of gi contents, causing a decreased ability for muscles to contract.

What are anticholinergics?

Anticholinergics are a type of medication which blocks the action of a neurotransmitter known acetylcholine. Acetylcholine transfers signals between cells that affect specific bodily functions. As anticholinergics can affect a variety of functions, including digestion, urination, salivation, they can help treat many conditions.

The medication blocks acetylcholine from causing involuntary muscle movements in the gastrointestinal tract,  lungs, urinary tract, and other areas of the body.

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Schwann cells are functionally similar to ________. Schwann cells are functionally similar to ________. oligodendrocytes astrocytes ependymal cells microglia

Answers

Answer:

Oligodendrocytes

Explanation:

Oligodendrocytes of the central nervous system

How long do seeds take to grow in the realm within?.

Answers

Answer:

Buy the appropriate plot for the seed in realm Depot. Place the plot and plant the seed. Wait for 70 hours or until the seeds to grow. Harvest the plant.

Explanation:

This plant cell was changed because...

(A) equal amounts of water moved across the cell wall

(B) the concentration of water is greater inside the cell than outside the cell

(C) more water left the cell than entered the cell

(D) the cytoplasm moves water into the nucleus​

Answers

Answer:

The answer is D good luck

C) more water left the cell than entered the cell.

The arrows indicate movement of the green substance around the cell

1 Predict) Have you met a woman who was pregnant? Write a short answer describing what type of development you think is going on inside a pregnant woman. ​

Answers

Answer:

Pregnant have many characters and when the embryo going to be develop her physical appearance like her weight will be increase . And in the pregnant women have high progesterone so she may have stomach cramps .

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please help fast!!! a shirt is regularly priced at $35.50 if it is discounted by 45% what is the sales price PLEASEEE HELP WILL MARK BRAINLIEST IF ITS CORRECTFor this assignment you must first do research to find out who your local representatives are and then you must compose a formal letter to your representative proposing a new bill that you would like to be brought to the house. You may choose from the following options as to what your bill is about.1. Environmental law2. Education law3. Rights granted to teenagersYour letter must be no less than 300 words and must be persuasive in tone. Make sure to think about your district and how this bill would help your community specifically. Reflect the shape A in the line x=-1What are the coordinates of the vertices of the image?please answer random who answered my last question Which expressions represent rational numbers? select all the apply. startroot 100 endroot startroot 100 endroot 13.5 startroot 81 endroot startroot 9 endroot startroot 729 endroot startroot 64 endroot startroot 353 endroot one-third startroot 216 endroot three-fifths 2.5 Q4 In Slaughterhouse Five, What will be the climax of the novel?Select one:a. the attack on Pearl Harborb. the bombing of Dresdenc. D-Dayd. V-Day Mt. Everest, the tallest mountain in the world, is 29,029 ft tall. K2, the worlds second tallest mountain is 28,251 ft tall. How much taller is Mt. Everest than K2? President Truman mentioned the United Nations commission on human rights during his speech to the NAACP in order to show? someone help me please The area of a rectangular piece of metal is 1,984 square centimeters. The perimeter is 188 centimeters. What are the dimensions of the piece? How long does it take for gums to heal after tooth extraction. Every month, Jim makes $49 less than his best friend Keenan.Let m represent the amount of money that Jim makes every monthand let d represent the amount of money that Keenan makes everymonth.Write an equation to represent the relationship between m and d. Typical household bleach has a ph of 13. what is the h3o concentration in household bleach? round to the nearest hundredth. 10n m n = The software that requests mail delivery from the mail server to an Internet device is known as mail ____ software. hello people ~Give the ratio in which hydrogen and oxygen are present in water by volume.(a) 1:2(b) 1:1(c) 2:1(d) 1:8 8. Who was the schoolteacher who helped educate the public about the poorliving conditions of the mentally ill?A. Dorothea DixC. George CatlinB. Samuel Gridley Howe D. Thomas Gallaudet NEED ANSWERS QUICK! CORRECT ANSWER GETS BRAINLIESTFind the quotient of 4 5/8 and 2 1/2. Express your answer in the simplest form. Pleassee helpp, find X. C in neeeee your help thank you ASAP will give brainliest!Lenin's fight against capitalism was focused on the struggle between:1. oppressed classes and the interests of the people.2. workers and the interests of the people.3. capitalists and the bourgeois4. capitalists and landowners. 08.02 mc the function