________ 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

If a substitution of one nitrogen base for another nitrogen base occurs in this change has no effect on amino acid being called for this would be known as a

Answers

Answer:

Point mutation

Explanation:

Since it does not alter the amino acid, it would be a point mutation (unless if it did change the amino acid, it would be a frameshift mutation).

Which two animals use echolocation? bats and humans bats and dolphins dolphins and humans dolphins and butterflies.

Answers

The two animals which use echolocation are bats and dolphins.

Both hunt their prey by articulating high-pitched sounds and listening for the echoes.

What is echolocation?

Echolocation is a method used by bats, dolphins and other animals to select the location of objects using reflected sound. This allows the animals to move around in pitch darkness, so they can guide, hunt, identify friends and enemies, and avoid obstacles.

Thus, bats and dolphins are two animals that use echolocation.

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Answer:

Bats and Dolphins is the correct answer

Explanation:

What do statements are true about a punt square

Answers

Answer:

Punnett squares predict the probability of different genotypes in offspring

Hope it helps

TC

have a great Time

According to the Frank-Starling Law of the heart, as contraction strength increases the stroke volume ________. Group of answer choices decreases shows no change increases

Answers

We can confirm that this law tells us that both stroke volume and contraction strength increase at the same time.

What is the Frank-Starling Law of the heart?

This law indicates the relationship between the volume of the ventricle, specifically the left ventricle, and the strength of its contractions. It follows the logical approach that if there is more volume in the ventricle, the cardiac muscles will have to stretch to allow for the space, which in turn causes a much stronger contraction when these muscles activate.

Therefore, we can confirm that this law tells us that both stroke volume and contraction strength increase at the same time.

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What are the 3 main NATURAL processes of the carbon cycle?

Answers

Answer:

The Carbon Cycle

Carbon moves from the atmosphere to plants.

Carbon moves from plants to animals.

Carbon moves from plants and animals to soils.

Carbon moves from living things to the atmosphere.

Carbon moves from fossil fuels to the atmosphere when fuels are burned.

Carbon moves from the atmosphere to the oceans.

Hope This Helps

17. Which physical law states that all orbits are conic sections?
A. Kepler's first law
OB. Kepler's third law
O C. Newton's laws
D. Kepler's second and third laws

Answers

D. Kepler’s second and third law’s

Answer:

Keplar's First Law

Explanation:

#PennFoster

JHMS

Why is it important to be aware of Wisconsin’s karst features

Answers

Answer:

The cracks and crevasses in karst act as direct conduits for pollutants to enter groundwater, wells, springs, and streams. If you've got a sinkhole, you've got karst. Protect your groundwater and wells by being careful about what you spread in these areas.

consequences of recent human migrations on human health

Answers

Explanation:

The most frequent health problems of newly arrived refugees and migrants include accidental injuries, hypothermia, burns, gastrointestinal illnesses, cardiovascular events, pregnancy- and delivery-related complications, diabetes and hypertension.

The failure of the brain to work properly would most directly affect the what?

Answers

Answer:

The nervous system

It involves the brain

The nervous system, because the brain is apart of it.

Select the BEST reason that humans engage in selective breeding/artificial selection:

Answers

Not Specific Enough, but the best reason in my opinion would be:

Answer:

Selective breeding of plants and animals, including crop plants with better yields. ornamental plants with particular flower shapes and colors. farm animals that produce more, better quality meat or wool.

What 3 things increase CO2 in the atmosphere?
I need the answers asap
Please

Answers

Answer:

Deforestation

Burning of fossil fuels

for energy and transportation

Answer:

Volcanic Eruptions, burning fossil fuels, deforestation, fluorinated gases

Explanation:

Natural:

Volcanic Eruptions

Human:

Deforestation, Burning of fossil fuels, use of fluorinated gases

What do plantations or farms help people to live?

Answers

Answer:

Plantations and farms provide food for people so there won't be starvation

Smith Auto uses a sales journal, purchases journal, cash receipts journal, cash payments journal, and general journal

Answers

The general journal of Smith Auto will be the first place where the company will record its data.

What is a journal?

The general journal is illustrated below:

July 3:

Debit inventory $3100

Credit Account payable $3100

July 6:

Debit Cash $600

Credit Sales revenue $600

Debit Cost of goods sold $450

Credit Inventory $450

July 7

Debit Equipment $5000

Credit Capital $5000

July 9

Debit Account receivable $750.

Credit Equipment $750

July 13

Debit Account receivable Bell $3200

Credit Sales revenue $3200

Debit Cost of goods sold = $2800

Credit Inventory = $2800

July 15

Debit Sales return $500

Credit Account receivable $500

July 22

Debit Building $20000

Credit Notes payable $20000

July 26

Debit Salaries expense $4400

Credit Cash $4400

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What are amino acids used for? ASAP

Answers

Answer:

Break down food, grow, repair body tissue

Explanation:

What are the steps of photosynthesis? How do they take place?

Answers

Hopefully my answer helps you out today.

Explanation: "The process of Photosynthesis is simple."

The process of photosynthesis can be divided into four steps.

The process: The first step in photosynthesis is the absorption of light by the sun that is attached to the proteins in the thylakoids of chloroplasts.

Electron Transfer. ...

Generation of ATP. ...    ATP is Energy-carrying molecule found in the cells of all living things.

Carbon Fixation.

                        Have a fantastic day or night!

There is a total of the 4 major steps in photosynthesis. Photosynthesis is the method plants use sunlight, water, and carbon dioxide to create oxygen.

What is the process of photosynthesis?

During photosynthesis, flora absorbs carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, which means it loses electrons, at the same time as the carbon dioxide is reduced, which means it profits electrons.  

It is handy to divide the photosynthetic method in flora into 4 stages, every happening in a described location of the chloroplast:

(1) absorption of light, (2) electron delivery main to the discount of NADP+ to NADPH, (3) technology of ATP, and (4) conversion of CO2 into carbohydrates (carbon fixation).

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Describe where hormones are produced and how they are transported from endocrine glands to their target organs, including the pituitary gland, thyroid gland, pancreas, adrenal glands, ovaries and testes.

Answers

Answer:

Hormones are transported through the bloodstream or through fluid around cells.

Explanation:

Once they find a target, they bind with proteins in the cells located in the glands you specified, causing the cells to change activities.

Hormones are the chemicals that are produced by endocrine glands.

What are the endocrine glands?These are the glands that do not have ducts.These glands produce hormones.What are hormones?They are known as chemical messengers of the body.They can be either peptide or a steroid etc.They are directly poured into the blood.What are some examples of endocrine glands?

Some endocrine glands are as follows:

pituitary gland, thyroid gland, pancreas, adrenal glands, etc.

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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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Since different species of penguin may occupy the same habitat, explain why they may continue to remain separate species.

Answers

Answer:

Some penguins may live in the same location that doesn't mean they have to be the same species of a penguin. They may not be attracted to other species that live there.

Explanation:

same as above

When should dna be replicated? what life events would include dna replication?.

Answers

Answer:

During growth and development i.e, as you get bigger because the cells are multiplying in number.

During repair of worn out cells and tissues e.g if you get a cut.

(It also happens in your hair and skin, but, I wouldn't label these as "life events"

Hope this helps(:

what is the name of the cells that control the opening and closing of the stomota

Answers

Answer:

guard cells

Explanation:

they control the opening and closing of the stomata

the diagram shows represents the number and age of fossils found in the grand canyon. the width of each shaded area in the diagram indicates the relative number of fossils found. which of the following statements is best supported by the fossil record

Answers

The fossil record from the grand canyon shows that organisms in group D were able to survive and remain relatively stable for the longest duration.

What are fossils?

Fossils are remains of plantsand animals that have been preserved for a long time within rocks and underground.

The fossils records found in the grand canyon shows that the organisms in group D remained relatively unchanged while other organisms either went extinct or kept undergoing changes in their population.

Therefore, it can be concluded that the organisms in group D were able to survive and remain relatively stable for the longest duration.

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The Toucan has a long, narrow beak that allows it to reach fruit that is hard to reach for other birds. Plants, like the Monstera Plant, in the rainforest have long, grooved leaves to drop water to the forest floor. The excessive water that falls in the rainforest could lead to mold, so the leaves adapted to have “drip tips” that allow the water to run off of the leaves.

What type of adaptations are these?

Answers

Answer:

The Toucan, as an animal, has to eat. So, the Toucan developed a more aggressive adaptation to get food. On the other hand, the Monstera Plant had to do something about the mold situation. So, it developed a less aggressive adaptation, more of a defensive one, to combat its issues.

Explanation:

Where are the renal corpuscles found in the kidney?.

Answers

Answer:

Cortex

Explanation:

The renal corpuscles are found in the cortex of the kidney. The collecting ducts make up the majority of the medulla. As a result, the presence or absence of renal corpuscles can be used to distinguish the cortex and medulla.

~

name a national park that is located in the Midwestern and development region​

Answers

Answer:

Here are some national parks lol:

Badlands National Park (SD) Cuyahoga Valley National Park (OH) Gateway Arch National Park (MO) Hot Springs National Park (AR) Indiana Dunes National Lakeshore (IN) Isle Royale National Park (MI) Theodore Roosevelt National Park (ND) Voyageurs National Park (MN) Wind Cave National Park (SD)

Explanation:

Was the ancestor terrestrial, aquatic, or live on both land and in water?

Answers

Answer:

Starting about 375 million years ago, transitional “fishapods,” with both primitive, fish-like traits and adaptations for semi-aquatic living, begin to appear in the fossil record.

Match the following.
1 .
omnivores
2 .
herbivores
3 .
scavengers
4 .
carnivores

wolves, coyotes

cattle, deer, mice

owls, snakes, alligators

hyenas, crows, vultures

Answers

Answer:

1. wolves, coyotes

2. cattle, deer, mice

3. hyenas, crows, vultures

4. owls, snakes. alligators

What is the general term for viruses and bacteria that make us sick?.

Answers

It could be germs or microbes

HELP!!! will give brainliest!! need answer quickly!! An Ff mouse is bred repeatedly to an ff mouse, producing 500 total offspring. In theory, 250 offspring should be black and 250 should be white, but the actual numbers are 237 black and 263 white. Why does this happen?

Answers

Cause 200 of them could die

Which chromosomes shown below are homologous?
A) B and C
B) D and B
C) C and A
D) A and B

Answers

The answer is A) B and C

The chromosomes shown below are homologous: C and A, which are in option C as Homologous chromosomes are a pair of chromosomes that carry genes for the same traits, such as eye color or height.

What are homologous chromosomes?

Homologous chromosomes are important for the process of meiosis, which is the type of cell division that produces gametes (sex cells) in eukaryotes. During meiosis, homologous chromosomes pair up and exchange genetic material in a process called crossing over. This allows for the mixing and shuffling of genetic information, which increases genetic diversity and contributes to the evolution of populations.

Hence, the chromosomes shown below are homologous in C and A, which are in option C. Homologous chromosomes are a pair of chromosomes that carry genes for the same traits, such as eye color or height.

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The __________ collect(s) urine, which drains continuously from the papillae, and empty it into the __________

Answers

The calyces collect urine, which drains continuously from the papillae, and empty it into the renal pelvis.

What are the calyces?

The calyces are specialized chambers located in the kidneys which are required to pass the liquid (i.e., the urine).

The calyces are fundamental for the normal functioning of the urinary system and normal body functioning.

The renal pelvis refers to the renal portion of the structure known as the pelvis (it is a bone structure).

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One source error is __________, and one of its solutions is having a lie scale inserted into the assessment. a. social desirability bias b. deliberate deception c. response bias d. response set please select the best answer from the choices provided a b c d Humans can distinguish up to 18,400,000 individual dots called pixels on a typical computer display. Can a human distinguish pixels on a same-sized HDTV with 210^6 pixels? Explain Experience has shown that 60% of sales are collected in the month of sale and 40% are collected the month after sale. Calculate expected cash collections for the month of april. - Halalna wrote lile47 X 31 = 1,4571,457 47 =What is the quotient in Halaina'sproblem?A 47B 31 30D 25 which property decribes a materails abilty to conduct heat ?A . Electrical conductivity B . Boiling point C . Thermal conductivity D . Melting point brainliest if its right How can gravitational tugs from orbiting planets affect the motion of a star?. What is the name for the base-2 system used by computers to representdata?O A. UnicodeO B. Binary codeC. Hexadecimal codeD. Decimal code Jennifer wants to know how many of her companys 1,800 employees ride the bus to work. She asks every fourth employee out of 800 entering the building from the parking garage Calendars were essential to the Maya way of life, so all Maya people learned how to readcalendars at a young age.true. or. false. Which type of rhythm is demonstrated in the stairs? A Flowing B Progressive C Random D Regular If x = 5 when y = 12, find y when x = 10. Frank McCourt, Whose Irish Childhood Illuminated His Prose, Is Dead at 78: What is a central idea of the Frank McCourt obituary?Question options:a) Despite earning a good living and then achieving fame, McCourt never lost touch with his impoverished background.b) McCourt never liked to publicly acknowledge his Irish roots until he finally sat down and wrote Angelas Ashes.c) Teaching became a way for McCourt to pass along the lessons he learned from literary success after Ashes became a juggernaut.d) McCourt had a falling out with his brother and other family members after they attempted to capitalize on his success. Question 7 (1 point)Which polynomial is equivalent to x2 + 3x ?O a--Ob--3 (22 2x) + 4x (x + 3) - 12x3 (22 + 2x) - 4x (x - 3) + 3x-3 (x2 + 2x) + 4x (x + 3) - 3x3(x2 - 2x - 4x (x - 3) + 12xOd--- Which sentence contains a pun?AThe man zipped around the corner.BReading on the beach can make you well red.CHer voice was the most beautiful music.DThe stars winked at me that night. can you help me please 2,914 rounded to the thousand and to nearest hundred Please help me with this math question attached below. How long does sucrose take to decompose? Why? I need help! An animal group adopted out 1,526 cats last year. this year, they found homes for 1,214 cats. what is the percent decrease in the number of cats adopted from last year to this year?