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3 years ago

How do T-cells help with destroying viruses?

2 answers:

6 0

They secrete chemical messages known as cytokines to stimulate the non-specific immune response to continue, to strengthen and to boost appropriate specific responses.

Katena32 [7]3 years ago

5 0

Answer:T-cells are a type of white blood cell that work with macrophages. Unlike macrophages that can attack any invading cell or virus, each T-cell can fight only one type of virus. You might think this means macrophages are stronger than T-cells, but they aren’t. Instead, T-cells are like a special forces unit that fights only one kind of virus that might be attacking your body.The T-cell receptor fits with its antigen like a complex key. When the perfectly shaped virus antigen on an infected cell fits into the Killer T-cell receptor, the T-cell releases perforin and cytotoxins. ... Cytotoxins go directly inside the cell through this pore, destroying it and any viruses inside.

Explanation:

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Vitamins A, D, E, and K are fat-soluble vitamins. Sort the phrases as describing vitamin A, vitamin D, vitamin E, or vitamin K.

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Answer: Vitamin D deficiency causes rickets.

vitamin A deficiency causes night blindness .

Vitamin C acts as a cofactor.

Vitamin D production takes place in the skin.

Vitamin E prevents ooxidative damage to membrane lipds.

Vitamin D regulate gene expression in epithelial tissues

Vitamin A are hormone precursor and visual pigment.

Vitamin D are hormone precursor derived from a <em>steroid</em>.

Vitamin K Function in fibin formation and antioxidant.

What is vitamin?

Vitamins are organic substances that are required in small quantities in food.

--They provide several functions such as increasing the rate of metabolism in the body, strengthening the immune system, proper growth and developments of bones and other body parts, etc

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2 years ago

Which of the following is NOT an example of stored chemical energy?

erma4kov [3.2K]

Answer:

The answer is ATP

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3 years ago

Summary of natural influences of a savanna.

max2010maxim [7]

Answer:

The African savanna ecosystem is a tropical grassland with warm temperatures year-round and with its highest seasonal rainfall in the summer. The savanna is characterized by grasses and small or dispersed trees that do not form a closed canopy, allowing sunlight to reach the ground. The African savanna contains a diverse community of organisms that interact to form a complex food web.

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A nurse is interacting with a depressed, suicidal client. what themes in the client's conversation are of most concern to the nu

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Loneliness and hopelessness

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3 years ago

C4 plants are thought to be more efficient than c3 plants because they

postnew [5]

Answer:

C4 plant are capable to deal with photorespiration

Explanation:

C4 are more efficient than the C3 plants because the C4 have a mechanism to deal with the photorespiration. C4 combat photorespiration by fixing the intial carbon dioxide between mesophyll and bundle-sheath cells (in space)and calcin cycle. The light dependent process and the calvin cycle are separate in C4 plants. Also C4 plants can adapt easily to even hot sunny environment

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3 years ago

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