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aivan3 [116]
3 years ago
14

Cytotoxic T cells ________. self-destruct once the antigen has been neutralized require the double recognition signal of class I

MHC plus class II MHC on the target cell in order to function can directly attack and kill other cells of the body function mainly to stimulate the proliferation of other T cell populations
Biology
1 answer:
BlackZzzverrR [31]3 years ago
6 0

Answer:

Cytotoxic T cells are the only T cells that can directly attack and kill other cells.

Explanation:

Cytotoxic T cells, also called killer cells, are the only cells that have the ability to kill cells infected by foreign bodies that are recognized as a threat to the body. These cells act directly on foreign and virus-infected cells or anything else the immune system recognizes as dangerous.

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Cholesterol has a much higher profile than the other lipids because of its association with heart disease. Despite its lethal re
yaroslaw [1]

Answer and Explanation:

The mechanism of action of statins begins with the inhibition of a protein called HMG-CoA reductase, allowing its substrate to accumulate in the body and promote cholesterol reduction. At that moment, a transporter called OATP (Organic Anion Transporting Polypeptides) takes statins to the epatic tissue where they will be transformed and metabolized until they are eliminated through bile. This elimination is influenced by the P-glycoprotein, which is the main cause of the efflix presented by the bili. This process can get help from other molecules like some protease inhibitors, digoxin and cyclosporine.

5 0
3 years ago
Marsha places a sealed plastics bottle of water in the freezer. The next day she discovers that the water has frozen and split t
vova2212 [387]

Answer:

D. physical weathering

Explanation:

The geological process that initiates and leads to the breaking of the rocks is termed as the physical weathering. In this process, the chemical composition of the rocks do not undergo any change. The process of breaking of the rocks is both gradual and sudden. The movement of the earth, the change in the temperature, the rise and fall of the water level, the presence of ice rocks for longer duration of the time, and the melting of the snow are some of the reasons which causes the physical weathering.  

The phenomena in the given expert represents the physical weathering.

8 0
3 years ago
A squirrel and an oak tree are both examples of individual?
maxonik [38]
<span>A squirrel and an oak tree are both examples of individual organisms</span>

Hope I Helped You!!! :-)

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5 0
3 years ago
All of space and the matter in it is
Vinil7 [7]

answer is : b. the universe ♡

3 0
3 years ago
Ability to roll the tongue is caused by a dominant allele. A woman is a "roller," but one of her parents is not. Reference: Ref
matrenka [14]

Answer:

1/2.

Explanation:

The autosomal dominant trait may en defined as the trait that can express itself even in the heterozygous condition and in the homozygous dominant condition as well.

Let the B allele is responisble for the roll tongue and b is recessive allele. The woman can roll the tongue and she must have the genotype Bb because her one parents is normal. The woman married with a man with non roller ( bb). The Bb × bb cross results in the following progeny Dd, Dd ( roller), dd and dd ( non roller). The probability of the child being a roller is 1/2,

Thus, the answer is 1/2.

5 0
3 years ago
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