Which of the cells are involved in graft rejection?

Answers

Answer 1
T cells
The immune response to a transplanted organ consists of both cellular (lymphocyte mediated) and humoral (antibody mediated) mechanisms. Although other cell types are also involved, the T cells are central in the rejection of grafts. The rejection reaction consists of the sensitization stage and the effector stage.

Related Questions

Which of the following are not biotic or abiotic factors in an ecosystem???

A.) Water and air

B.) Rocks and energy

C.) Plants and animals

D.) Cultural components

Answers

D is the correct answer

What is the coding region of DNA called? Explain.
a- A gamete
b- A allele
c- A sister chromatid
d- A gene

Answers

Answer:

D-Gene

Explanation:

Because of the protein it get's. When it gets the protein it needs then they develop the gene therapy.

Why does embryology suggest an evolutionary relationship? Explain how these embryos can be used as evidence of a common.

Answers

Answer:

In the examination of the embryological stages of various organisms, it appears to be very similar in their structure, for instance, all vertebrate embryos have gill pouch and that evolved in gills in fish and head and neck in others.

The tail of the vertebrates is also an example that is present during the embryological stage but later regressed in human and other have them. On this basis, it can be stated that embryology suggests an evolutionary relationship.

HELP NEEDED ASAP!!!!

Answers

Answer:

I think I found your answers! ;)

Let me know if its wrong and I can fix it, but here you go!

Explanation:

Identify the following structures of a plant cell using the diagram to the right.
1.
D
Nucleus
с
E
B
2.
Cell Wall
3.
Cell Membrane
F
4.
Chloroplast
5.
Vacuole
6.
Mitochondria
7.
Cytoplasm

Answers

Answer:

1.C

2.E

3.F

4.B

5.G

6.D

7.A

Explanation:

One choice contains ONLY biotic factors that might be found in a home aquarium's environment. That is
A)
fish, snail, and plants.

B)
fish, snail, and gravel.
water, gravel, and the glass wall of the aquarium.

D)
fish, dissolved oxygen, and bacteria living in the water.

Answers

Answer:

A) fish, snail, and plants

Explanation:

what are the pros and cons of meiosis?

Answers

Answer:

Pro: sexual reproductions', organism carry off offspring's DNA. asexual reproduction lack genetic differentionn

The sexual reproduction is better when having children that have different DNA!

organisms survive better with diverse offspring

Con: The sexual reproduction is hard to get

It requires a lot of work just to create 1-2 organisms

It lacks speed

Explanation:

On a scale of one to nature valley granola bar, how much is your life falling apart rn?

Answers

Answer:

Nature valley granola bar lol

Explanation:

Answer:

Nature Valley Granola bar.

Explanation:

I can't see my future wife (whom I had gotten engaged to before the pandemic started) because she became infected with the corona virus. Not to mention several of my friends that I had known since High School have died. So life really isn't going well right now.

Anna studies the color of her bedroom wall using different lights. In sunlight, she sees that the wall is white. Anna darkens the room and shines a beam of light that includes all the wavelengths of visible light onto the wall. In this light, what's the wall color that Anna sees?

Answers

Answer:

White

Explanation:

The light is measured by its wavelength, generally in nanometers (nm), and visible light has a wavelength spectrum of 400 to 700 nm. Sunlight can be divided into three components: 1-visible light, 2-ultraviolet (UV) light, and 3-infrared radiation. Since white light is visible light (this color contains all the colors of the rainbow) and sunlight includes the visible light of all wavelengths, the object will look white under this light spectrum.

Answer:

white

Explanation:

What is true of the population shown in this graph?


A) The population has increased until it reached its carrying capacity.


B) The population is not changing much over time.


C) The population is growing unchecked.


D) There are many factors at work to control the population.



Ω Entity001 And Project Ω

Answers

Answer:

C.

Explanation:

It is C. because there are no numbers for you to see how many people there are and since the line in the graph went up super high it means the population is growing unchecked since there arent any numbers on the graph to prove it was checked.

How do humans interfere in the carbon cycle?

Answers

Answer:

Humans burn fossil fuels, clear trees, change land use, creating smog that traps the carbon in the Earth's atmosphere, leading the oceans to absorb the heat and eventually end up with global warming and ocean acidification.

Explanation:

Good luck <3

The conservation of charge principle states that _________. Select all that apply.

Answers

Answer:

Where is the picture? .. If no picture I cant answer

The genotype of individual 2 could be

Answers

Answer:

ee

Explanation:

indicated by black color.

starch is a polysaccharide that contains...

A. one molecule of glucose
B. two molecules of glucose
C. many molecules of glucose
D. none of the above
HELP​

Answers

Answer:

many molecules of glucose

Plant Nutrition and Photosynthesis ​

Answers

Answer:como

Explanation:

cmefr ut y aversduraos

A cell undergoing meiosis has a defect and cannot do crossing over. The cell
completes the rest of meiosis successfully and produces four sperm cells.
Which of the following describes the correct outcome of this defect?
Select one:

The sperm cells will all be the same.

The sperm cells will be identical to the parent cell.

The sperm cells will have reduced genetic variety but will still be different.

The sperm cells will form two pairs of identical cells. Cells in a pair will be different from
the other pair

Answers

Answer:

Option #3

Explanation:

That is the basic terminology that us used during meiosis.

The statement that best describes the correct outcome of this defect is the sperm cells will all be the same. Thus, the correct option for this question is A.

What is Meiosis?

Meiosis may be defined as a type of cell division that significantly produces four daughter cells that are genetically non-identical to the parental cells. These daughter cells are haploid in nature. Germ cells or sex cells are generally produced by this mechanism.

The cells that are formed as a result of meiosis have half the amount of chromosomes as compared to the parental cell. This is because when the germ cells of two different origins fuse together, they will form complete chromosomes.

The egg cells or sperm cells that are produced by this process of cell division will all be the same with respect to the number of chromosomes and physiology along with function.

Therefore, the sperm cells will all be the same is a statement that best describes the correct outcome of this defect. Thus, the correct option for this question is A.

To learn more about Meiosis, refer to the link:

https://brainly.com/question/25995456

#SPJ2

What type of rock forms due to heating and cooling? A. Slate B. Metamorphic C. Igneous D. Sedimentary​

Answers

Answer:

Igneous rocks I think ^^

Answer:

I think is C...........

During the reproduccion of a species of mice a mutation occurs that makes the hair of the offspring blend into its environment is this a postove or negative mutation? How do you predict this mutation will affect the long term survival of the species? Justry your response in two or more complete sentences in the essay box below.​

Answers

Answer:

This will be a positive mutation because the mouse will now have an advantage.

Positive mutation. This allows the mice to be able to hide from its prey better than mice that don’t have this mutation. Because of this, the mice with the mutation have a higher chance of a long life and are able to reproduce and spread the mutation to future generations.

If a cell lost the ability to make its own proteins what organelle is likely not working properly?

A. Ribosomes

b. Cell membrane

C. Chloroplast

D. Mitochondria

Answers

Answer:

A: Ribosomes -

They are composed of special proteins and nucleic acids.

Explanation:

B is incorrect, because the cell membrane controls what goes in and out of the cell.

C is incorrect, because chloroplast helps with photosynthesis in plant cells

D is incorrect. because mitochondria is the power house of ther cell. It produces the energy for the cell.

A. ribosomes it needs
protien to work

how to solve Amino Acid Sequence?​

Answers

Answer:

I hope this helps it's a picture of how to solve to get amino acids.

Explanation:

Determine the composition and terminal amino acids of each chain. Break each chain into small fragments (less than 50 amino acids in each) Separate the fragments and purify them. Use the fragments to determine amino acid sequence

what's the difference between the structure of a nucleic acid and the structure of a protein? ​

Answers

There are two principle differences between the structures of proteins and nucleic acids:

Monomer Composition
Eventual Conformation

The first involves the chemical makeup and bonding pattern of individual monomers of each polymer, those monomers being amino acids in proteins and nucleotides in nucleic acids. Amino acids consist of an amine and carboxyl functional group along with a side chain (commonly referred to as an R group), with the amine and carboxyl groups involved in “linking.” Nucleic acids are of quite a different chemical makeup, composed of a five-carbon sugar and phosphate group backbone, both involved in chaining, from which protrudes a nitrogenous base.

The second involves the “destiny” of the polymer in regards to conformation. A protein’s eventual conformation is always consequential, resulting from interactions between the R groups of its amino acid monomers. Nucleic acids, on the other hand, possess the notable structure of strands. RNA’s case is one of a single strand, while DNA’s is a double-helical arrangement of two.
(I know this is a lot of info but I hope it helps :) )

Saturn's moon Enceladus orbits the planet at a distance of 2.38 x 10 m. Enceladus orbital
period about Saturn is 118,368 seconds. What is the mass of Saturn?

Answers

5.683 × 10^26 kg is the mass of saturn


All living things are classified into kingdoms based on specific characteristics. Which of the following are only characteristic of the plant kingdom?

Answers

Answer:

divided into phylaits is the biggest group of living things

Answer:

autotrophic, eukaryotic cells, cell wall present  

Explanation:

A doctor examines a patient who has high blood pressure and atherosclerosis in the coronary artery. what medical condition connected to blood flow is most likely to affect this patient in the future?​

Answers

Answer:

A myocardial infarction (heart attack)

Explanation:

Which grouping lists only minerals?
A.obsidian, gypsum, corundum
B.pyrite, halite, brass
C.quartz, coal, basalt

Answers

Answer:

C

Explanation:

i think

Answer: C

Step by step:

The ______
phases appear to grow.
The ______
phases appear to shrink.


(Talking about moon phases)

Answers

Answer:

Explanation:

The First Quarter Phase Appear To Grow

The Last Quarter Phase Appear To Shrink

Transpiration is the _____ of water through the leaves of plants.

Answers

Answer:

loss of water :)

Explanation:

Answer:

Movement

Explanation:

Water moves out of the leaves of the plants.

Have a great day

Rough-skinned newts produce a strong toxin called TTX as a defense mechanism against predators. Garter snakes can
tolerate a very limited amount of the toxin. However, several populations of garter snakes have recently shown an
increased tolerance for TTX. The different populations of snakes have independently acquired a gene variation that
allows them to better block the effects of the toxin.
Jason P ROSS/Dreamstime
Rough-skinned newt
Garter snake
Which of these is most likely to increase in garter snakes?

Answers

Answer: C

Explanation: took the testy test

The most likely to increase in garter snakes is :

C) The frequency of the variant gene in the garter snake population.

"Garter snakes"

The most likely to increase in garter snakes is the frequency of the variant gene in the garter snake population.

The garter snakes are common, harmless North American snake that typically has well-defined longitudinal stripes and favors damp habitats.

Thus, the correct answer is C.

Learn more about "Garter Snake":

https://brainly.com/question/24585762?referrer=searchResults

Which situation is an example of competition that could be found in the ocean?


two shark populations utilize the same fish population as their main food source


algae blooms decrease as the number of fish increase


lack of sunlight due to changes in the seasons restricts the growth of certain plants


plentiful oxygen leads to an increase in the number of reefs

Answers

Answer:

A. two shark populations utilize the same fish population as their main food source

I'm guessing this is from Marine Biology. I know this is an example of competition because two different groups of sharks are eating food from the same source. If one group gets to it first every time, they could leave the other group with no food. So it is a competition.

Answer:

two shark populations utilize the same fish population as their main food source

Explanation:

I took the test bestie <3

If my cultures are suffering severely due to alkaloid production and accumulation in the medium. In that case, how can i overcome this problem?

Answers

Explanation:

Alkaloids are essentially natural compounds, and can mostly be used for pharmaceutical purposes. Natural habitats of different alkaloid plants have been destroyed for  cultivated.

Many alkaloids are pharmacologically active and are useful as a message for several decades because a wide range of species, such as animals and bacteria, produce them.

Secondary and accumulating metabolites are related to different cell types such as epidermis endodermis pericycle phloem parenchyma, components, accompanying cells etc.

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