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Norma-Jean [14]
3 years ago
6

How does the destruction of T cells interfere with the body’s ability to fight disease?

Biology
1 answer:
maria [59]3 years ago
8 0

Answer:

Explanation:

T cells are arguably the most important cells in  immunity, as they are required for immune responses. They not only help activate B cells to secrete antibodies and macrophages to destroy ingested microbes, but they also help activate cytotoxic T cells to kill infected target cells. As dramatically demonstrated in AIDS patients, without helper T cells we cannot defend ourselves even against many microbes that are normally harmless.

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This is when animals live together in a close-knit society with other members of their species and they work and act together fo
Dima020 [189]

Answer:

Cooperation

Explanation:

Cooperation is a type of behavior evolved by members a species living together in a close-knit society, whereby they all work and act together to ensure the common good of all members. This behavior ensures the survival of the members of the species in any environment.  

Cooperation among small birds ensures protection of the members of the group against predators. Also, pack hunting is a form of cooperation among animals of a species to ensure nutrition is provided for all in the group. Se animals also form defensive circles as a form of cooperation to ensure protection of members, especially the weak and young members, against predators.

3 0
3 years ago
Read 2 more answers
Which statement id true about a cell wall but not a cell membrane
Andru [333]

It forms the outer layer of a cell. It gives an animal cell its shape. It is selectively permeable.

:3333333333

3 0
3 years ago
What is the resistance of a 20-cm-long column of blood in this artery? assume that resistivity of blood is equal to 1.6 ωm.
Alinara [238K]
The way in which you need to solve this is by using the formula:
<span>R = ρL/A 
</span>That one is the formula that demonstrates <span>Resistance of a wire in Ω.
The formula can be explained like this: 
</span><span>ρ is resistivity of the material in Ω-m </span>
<span>L is length in meters </span>
<span>A is cross-sectional area in m² </span>
<span>A = πr², r is radius of wire in m 
As soon as you have your numbers, you can replace and proceed to get the asnwer</span>
7 0
3 years ago
Why is mRNA needed in cells, and how does it help with creating proteins?
nataly862011 [7]
MRNA is needed in the cells because it directs the synthesis of proteins which is found in the cytoplasm. It is a molecule that carries the message contained within DNA to the ribosome. The Proteins are assembled on the ribosomes using the mRNA nucleotide sequence as a guide.
4 0
4 years ago
Your lab specializes in assessing genetic variation between human populations in european countries. What type(s) of analysis wo
ladessa [460]

The answer is single nucleotide polymorphisms (SNPs)

It checks for variation in nucleotide sequences in particular genes that may be different among people, especially in different races. An example is a gene for melanin that would determine the trait for skin color. Single nucleotide changes in the gene between population can be used to differentiate populations.  


8 0
3 years ago
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