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satela [25.4K]
3 years ago
12

How do vaccines cause the immune system to react

Biology
1 answer:
3241004551 [841]3 years ago
5 0

Vaccines introduce small amounts of dead viruses or harmful cells into the body in order to teach the body how to effectively fight said virus/cell

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Explanation:

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Inherited structures of bears
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Common characteristics of modern bears include large bodies with stocky legs, long snouts, small rounded ears, shaggy hair, plantigrade paws with five nonretractile claws, and short tails.
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2 years ago
During DNA replication, _____. a. four identical DNA molecules are produced each parental b. strand serves as a template for the
BaLLatris [955]

Answer: Option B) each parental strand serves as a template for the synthesis of a complementary strand

Explanation:

In semi-conservative DNA replication,

- a parent double-stranded DNA splits in two.

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- the new strand contains nucleotides that are complimentary to free nucleotides present in the parent strand.

Thus, option B perfectly describes semi-conservative replication of dna

5 0
3 years ago
A water-soluble hormone binds to its receptor on the plasma membrane. Arrange the events that follow in correct sequence. (1) al
Nat2105 [25]

Answer:

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5 2 3 4 1

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The 2nd one is correct B
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