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MA_775_DIABLO [31]
2 years ago
8

What happens after activation of T cells​

Biology
1 answer:
NikAS [45]2 years ago
8 0

Answer:

Helper T cells are arguably the most important cells in adaptive immunity, as they are required for almost all adaptive 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.

Explanation:

Helper T cells become activated when they are presented with peptide antigens by MHC class II molecules, which are expressed on the surface of antigen-presenting cells (APCs). Once activated, they divide rapidly and secrete cytokines that regulate or assist the immune response.

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Answer:A

Explanation:

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3 years ago
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Phil observes that when he turns on a flashlight, chemical energy from the batteries is transformed into light energy. Phil trie
grin007 [14]

Answer:

A. a lamp being turned on

B. a toaster being used to toast bread

D. a car horn honking

Explanation:

Energy transformation is the conversion of one form of energy to another form in accordance with the law of conservation of energy. According to this question, Phil is observing a flashlight, which turns chemical energy (batteries) into light energy.

From the examples given in this question, the following are examples of scenarios that involve energy transformation:

- A lamp being turned on: This converts chemical energy to light energy.

- A toaster being used to toast bread: This converts electrical energy to heat energy.

- A car horn honking: This converts electrical energy to sound energy.

Note that, melting of a chocolate does not transform any form of energy.

3 0
2 years ago
Which term describes resistance to change in motion? A. Acceleration B. Inertia C. Net force D. Velocity
kondaur [170]

Answer:

Inertia

Explanation:

Inertia is the resistance of any physical object to any change in its velocity. This includes changes to the object's speed, or direction of motion.

4 0
3 years ago
How do two copies influence the traits of an individual?
Dmitry_Shevchenko [17]

Answer:cookie

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6 0
2 years ago
Which of the following is a part of the diencephalon.
emmainna [20.7K]

Answer:

d. all of the above

Explanation:

The diencephalon is a part of the brain located inferiorly and anteriorly to the corpus callosum, part of the telencephalon, and superior to the midbrain, delimited by the latter by an imaginary line that runs from the nipple to the posterior commissure (epithalamus). The diencephalon consists of: thalamus, hypothalamus, epithalamus, metatalamus and subthalamus. For this reason, we can conclude that the correct answer to your question is "d. All of the above".

8 0
3 years ago
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