Anything that elicits an immune response is called a

Answers

Answer 1

Answer: antigen. brainliest?

Explanation:


Related Questions

How does a hot spot make a volcano?

Answers

A hot spot is a region deep within the Earth's mantle from which heat rises through the process of convection. This heat facilitates the melting of rock. The melted rock, known as magma, often pushes through cracks in the crust to form volcanoes. ... Instead it occurs at abnormally hot centers known as mantle plumes.

A database is an efficient way to share information because it:
A. is often the most significant source of error in an experiment
B. provides the most precise measurement of a natural object.
C. can be searched quickly for the most relevant observations.
D. can evaluate the validity of a logical argument in a discussion.

Answers

Answer:

C. can be searched quickly for the most relevant observations.

Can be searched quickly for the most relevant observations. Therefore, option (C) is correct.

What is a database?

A database is a collection of organized data that can be searched, updated, and analyzed to obtain specific information or insights. One of the main advantages of a database is that it allows for quick and efficient searching and retrieval of relevant information.

This is particularly useful for sharing information among multiple users, as it allows for easy access to the same data from different locations and at different times. While a database can be used to store a wide range of information, it is typically not used to evaluate the validity of a logical argument, measure natural objects, or identify sources of error in an experiment.

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All organisms in the kingdoms Priotista, Plantae, Fungi, and Animalia are

Answers

Answer:

Eukaryots.

They have a well defined nucleus and memebrane bound organelles.

What does the slope of a distance-time graph represent?
The

Answers

Answer:

it represents the speed of moving

Explanation:

A sloping line on a distance-time graph shows that the object is moving. In a distance-time graph, the slope or gradient of the line is equal to the speed of the object

depends, if distance is x and time is y, the slope will be representing the how long it takes to get to a distance. and ofc, the other way around, u get the point

4. How does a sound wave vibrate?

Answers

When sound waves move through the air, each air molecule vibrates back and forth, hitting the air molecule next to it, which then also vibrates back and forth. The individual air molecules do not "travel" with the wave. They just vibrate back and forth.

The function of the liver in humans is to maintain the [glucose] circulating in the blood stream at reasonably constant levels. This is so organs like the brain that use primarily glucose as their carbon source to produce energy via ATP have a steady supply of glucose. It also ensures that the levels of glucose in the blood stream do not get too high. Using the plots from problem 6, discuss why it makes sense that glucokinase in liver would behave differently than the hexokinase in other cells.

Answers

Answer:

Due to difference in function.

Explanation:

Glucokinase in liver behave differently than the hexokinase in other cells because glucokinase performs different function in the body. Glucokinase is an enzyme that is responsible for sensing the glucose level in the blood and also plays a key role in the storing of glucose as glycogen while on the other hand, this storing ability is absent in hexokinase so that's why the glucokinase in liver behave differently than the hexokinase in other cells.

Calculate the diploid & haploid numbers for each of the following organisms
Organism
Diploid number
Haploid number
Camel
70
Human
46
Squirrel
20
Apple
34
3
Mosquito
Frog
13
Lettuce
18
Explain how a human baby gets 46 chromosomes:

Answers

Answer:

Meiosis is the start of the process of how a baby grows. Normally, meiosis causes each parent to give 23 chromosomes to a pregnancy.  When a sperm fertilizes an egg, the union leads to a baby with 46 chromosomes.

describe the structure of the ovule and the formation of the embryo sac

brainliest to the first well detailed correct answer ​

Answers

Answer:

An embryo sac is said to form when the haploid megaspore nucleus divides. It possesses two haploid nuclei and six haploid cells which do not have cell walls.

Explanation:

2) Which of the following designates a female elephant? A: Bull B: Sow C: Cow D: Mare​

Answers

The answer is C (aka cow)

A scientist helps a colleague do a better experiment by:
O A. refusing to consider an alternative interpretation of results.
B. suggesting that unrepeatable results are still reliable.
C. making up observations that are hard to obtain directly
D. sharing the cost of an expensive tool or instrument.

Answers

Answer:

I think C

Explanation:

it is good reason

The scientist that helped to colleague for doing a good experiment when the expensive tool or instrument should be shared.  

What is an experiment?

An experiment refer to the procedure where it should be carried out for supporting or refuting a hypothesis. It provides the cause and effect relationship by represent the result that arise at the time when the specific factor should be changed.

And,  when the expensive tool cost should be shared so the more good experiment should be conducted.

hence, the option d is correct and the rest options should be incorrect.

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What is a way carbon dioxide moves from nonliving things into living things?

Answers

hi!

through the process of photo synthesis

Why can yeast be considered to be a parasite?

A. Yeasts are helpful towards other organisms.

B. Yeasts are considered to be a food source by some organisms.

C. Yeast can only move by being carried by another organism.

D. Yeasts can harm other organisms.

Answers

Answer:

B

Explanation:

During the formation of metamorphic rocks, what most likely causes pressure to increase?

Answers

Answer:

Magma pockets rise.

Explanation:

Answer:

It should be D, rocks beneath Earth's surface are forced toward the mantle.

Explanation:

edge2021

Siphos brother is an actor.​

Answers

Answer:

good for siphos lol

Explanation:

I need a definition of representation and diversity

Answers

Answer:

resperation is the the action of breathing.

diversity is a range of different things.

Explanation:

Decomposers ________. what is a Decomposers

Answers

Answer:

Decomposers are organisms that break down dead or decaying organisms, they carry out decomposition, a process possible by only certain kingdoms, such as fungi.

Hope this is what ur looking for

Explanation:

Answer:

Decomposers are organisms that break down dead or decaying organisms, they carry out decomposition, a process possible by only certain kingdoms, such as fungi.

Explanation:

Builder a was able to underbid his competitor, builder b, by secretly using a lower grade cement when building swimming pools.both builders used the same design and specifications for the pool. Two years later, the pools made buy builder a began to leak and soon became unusable who is liable for the expense of fixing the pools?

Answers

Answer:

builder A

Explanation:

got it right

Answer:

Builder A

Explanation:

On quizlet

If individuals from box 1 and box 4 were crossed, what would be the genotypes of the
offspring?
F. all Bb
G. Bb and bb
H. BB and bb
I. BB and Bb

Answers

letter I, BB and Bb would be your answer

Why would a rough, steep mountain habitat have a higher rate of speciation
than a large, open grasslands habitat? I will make u brainliest
A. The mountain has less variety in the environment.
B. The mountain would cause less fragmentation.
O C. The mountain has wider range of environments.
O D. The mountain has more resources.
SUBMIT

Answers

Answer:

I think the correct answer is A

Explanation:

Answer: C. The mountain has wider range of environments.

That’s the right question

Answers

Answer:

oh cool

Explanation:


Question 21
Neurons of the cerebral cortex never dip into the medulla.
O True
O False

Answers

Answer:

False

Explanation:

The cerebral cortex refers to the outer layer of the brain. This layer is formed by a thin film of nervous tissue that surrounds the surface of the cerebral hemispheres, with primates having a much more developed cerebral cortex than other animals.  

the cerebral cortex is a thin layer of neurons and neuronal connections which is embedded in the neocortex(the neuronal cells of the cerebral cortex which form in the deep layer), it is not homogeneous, since it is made up of six layers of cells, each with specific and specific functions.

Different alleles produce different characteristics. True False

Answers

Answer:

Explanation:

Los alelos son formas alternas de un gen, que difieren en secuencia o función. Toda característica genéticamente determinada depende de la acción de cuando menos un par de genes homólogos, que se denominan alelos.

Which gland is enlarged in a young child and what is the main function of the hormone it secretes?
O A) Pineal – seasonality and salt resorption
B) Thyroid - metabolism
C) Thymus - immune system development
D) Pancreas - calcium storage
E) Adrenal – secondary sexual characteristics

Answers

Answer:

C

Explanation:

The thymus produces and secretes thymosin, a hormone necessary for T cell development and production. The thymus is special in that, unlike most organs, it is at its largest in children.

Answer:

The right answer is option C, thymus.

Thymus helps in immune system development. Its located behind sternum and helps in maturation of T lymphocytes.

PLEASE HELP TAKING TEST NOW!!!!!!!!!!!!!! Many animals influence and contribute to ecosystem services. As pollinators, how do bees ultimately contribute to direct ecosystem services? (1 point)
O Bees pollinate plant species that contribute to the carbon cycle.
O Bees pollinate plant species that humans admire in nature.
Bees pollinate plant species that produce oxygen that humans need.
O Bees pollinate plant species that produce food.

Answers

Answer:

D

Explanation:

Many animals influence and contribute to ecosystem services. As pollinators, how do bees ultimately contribute to direct ecosystem services? (1 point)

O Bees pollinate plant species that contribute to the carbon cycle.

O Bees pollinate plant species that humans admire in nature.

Bees pollinate plant species that produce oxygen that humans need.

O Bees pollinate plant species that produce food.

what bug is this I need to to know.​

Answers

Answer:

i think beetle bug

Explanation:

the color size dont harm bad

eselson and Stahl relied on equilibrium density gradient centrifugation to resolve the DNA containing 14N from the DNA containing 15N.They started off with DNA in media containing the heavy isotope, then switched to media containing the lighter isotope and allowed DNA replication to take place. Under semiconservative model of DNA replication, after THREE rounds of replication, how many bands of DNA would you see and which band would contain more DNA molecules

Answers

Answer:

The correct answer would be - two bands ( one intermediate, and one light)- the light band contains more DNA molecules.

Explanation:

After the switching to the lighter isotope by the second round of replication where light strands are used as template strands, produces the light band of 14N.

After three rounds of semiconservative replication, where template strand contains both heavy and new formed light bands or nitrogen and produces so in a Density gradient, there will be 2 bands one light band and the other intermediate band.

PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!

Which of following items is probably the most ductile?

A. slice of bread
B. piece of chewed gum
C. wooden blocks
D. piece of paper

Answers

Answer:

D I think

because ductile means that they can form without cracking

piece of chewed gum.

Explanation:

chewing gum is flexible. it shows both malleability and ductility

Which of the following biotic factors is associated with increasing the capacity of the organisms to move across fragmented landscapes? Patch size, connectivity,Patch shape, Distance from other landscape patches

Answers

Answer:

connectivity

Explanation:

Natural and anthropogenic alterations affect the landscape. The unmeasurable use of the land for farming, cattle industry, buildings, among many other activities, has caused a severe fragmentation in the original landscape that has been seriously affecting biodiversity.    

Fragmentation occurs when a big extension is transformed into many different and smaller patches, separated by another type of cover. You can imagine, for instance, an area used for mono-culturing, which you can see as a homogeneous space of the same texture and color, and small green islands of original vegetation dispersed in this cropped area. These small islands are separated from each other by the crop.

These alterations produce patches or tesserae in the landscape. Patches are relatively homogenous areas with well-defined borders and environmental characteristics very different from those of the surrounding areas. These are like islands. You can think about patches or tesserae as the remaining pieces or units of the original landscape dispersed inside an affected bigger-sized area.

Fragmentation generates a significant loss of physical continuity between the different areas of the original habitat. It might negatively affect biodiversity by decreasing patch sizes, completely isolating them from each other, and increasing the border effect.

Many species can not survive if they are not in the original habitat. Probably they do not find enough food or shelter, or they are very exposed to predation. So they need to stay in the patch. Most of these species are not even adapted to living on the border of the patches. Eventually, fragmented areas can not support some population species that end by dying because they can not survive for a long time in that reduced place. Patches are not suitable to support too many species.

For these reasons, the connection between islands becomes so important.  To allow species to move from one place to the other, interact with other species, reproduce, find food, shelter, avoid predation. In other words, survive.  Connectivity is how the territory makes possible individuals flow or genetic flow, between the different tesserae.

3. If muscle contraction were an athletic game, calcium would be the most valuable player. Describe,
using some depth, the roles calcium is serving both inside the muscle fiber and outside at the NMJ.

Answers

Answer:

Explanation:

At the NMJ, calcium is responsible for "unlocking" the ligand gated channels, allowing AcH to be released into the synaptic cleft. When AcH binds and the AP moves down the sarcolemma and into the t-tubule, calcium is then released from the sarcoplasmic reticulum into the sarcoplasm. It then binds to the calcium subunit of troponin, causing a confirmational change in tropomyosin, exposing the active sites on actin. This allows the myosin heads to bind, causing muscle contraction.

GUYS PLEASE PLEASE HELP WITH THIS!!!

Answers

Answer:

energy carried by waves: sound and radiant energy

Answer:

energy carried by waves-sound and radiant energy

Explanation:

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Which type of map best shows the three dimensions of Earths surface? How is the graph of y = 4x^2 - 9 different fromthe graph of y = 4x^2 - 8? Plz Help MeeeDescribe the accomplishments in the arts, philosophy, and literature during the Ming dynasty. Please help me.... I didn't understand the question I have a standard deck of playing cards in one pile, and a deck of 10 distinct Pokmon cards in anotherpile. If I randomly choose 3 playing cards and 4 Pokmon cards (and I don't care about the order I drawthem), how many different choices could I make? A 1.5 L pocket of air with a temperature of 295 K rises in the atmosphere. What will be the volume of the air pocket of the t temperature decreased to 2 celsius and the pressure is not changed. How does competition create conflict Complete the sentence: The north pole of a magnet____ the north pole of another magnet.-will attract-may repel, attract, or not affect-will not affect-will repel Please answer LIKE PLEASEEEEEEE Which of the following is a major cause of extinctions?volcanic eruptionsO earthquakessolar flaresO overharvesting species why is the air so warm at the equator NEED HELP ASAPlook at the underlined details in the passage. What I a "passthought" What is the goal of segregation?O A. To encourage the integration of public facilitiesB. To help people in need of assistancec. To separate racial groupsD. To maintain a democratic system PLEASE HURRY I'M TIMED WILL GIVE BRAINYEST Which park in Wyoming is home of Old Faithful geyser, herds of bison and elk, and over 10,000 hot springs and geysers?Yellowstone National ParkGlacier National ParkYosemite National ParkGreat Basin National Park In Sisyphus and the rock which of these qualities resulted What happens during the derby? hurry!!! How did the Assyrian kings maintain control over their large empire?Select ALL that apply. aby building roads to connect provinces bby giving more land to wealthy citizens cby reducing taxes for poor citizens dby appointing governors to oversee provinces Evaluate the expression for x=-2 and y=9.xy + y = HIII PLEASE HELP ITS 6 GRADE MATHS LOLL Solve for x.SHOW WORK!