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ki77a [65]
3 years ago
14

Helps activate T cells, which are produced in bone marrow but mature in the thymus gland HELLPP

Biology
1 answer:
love history [14]3 years ago
3 0

Answer:

peptide antigens by MHC class II molecules

Explanation:

Helper T cells are activated by peptide antigens by MHC class II molecules. These antigens express on the surface of antigen-presenting cells (APCs). After activation, the T helper cells divide and secrete cytokines  to assist the immune response.

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Which of these is best when painting a room?
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4 years ago
Color in flowers is codominant. If you cross a Heter0zygous spotted flower with a Hom0zygous Red flower, what is the % genotype
navik [9.2K]

This is an example of codominance where both allelles manifest when present.

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8 0
3 years ago
The diagram shows a model of how a hydra reproduces by budding​
astraxan [27]

Answer:

B. It shows offspring that have the same genes as the parent.

C. It shows asexual reproduction.

Explanation:

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4 0
3 years ago
Which substance is a product of photosynthesis? O A. Nitrogen O B. Glucose O C. Carbon dioxide O D. Water​
garik1379 [7]

Answer:

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6 0
3 years ago
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11111nata11111 [884]

Beavers are descendants of land-dwelling rodents similar to rats. The beavers however have adapted their body shape to live in water bodies like ponds and lakes. This can be hypothesised by saying that the early rodents or the ancestors of beavers were forced to find food in the waters. They lacked the flat tail and the webbed feet. With time the need to increase their ability to catch fishes and floating insects, the rodents with flatter tail and a bigger flat webbed feet gradually evolved. The rodents with flatter tails and webbed feet became adjusted to the life on water and became the modern day beavers.

3 0
4 years ago
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