PLEASE HELP ON LAST 3 40 POINTS

Biology

1 answer:

Vika [28.1K]3 years ago

3 0

<h2>Answer</h2>

Where low tide occurs?

Low tides occur between two high tide areas. They form 90 degree angles with the moon.

Where high tide occurs?

Parts of the earth when facing the moon, those parts experience the pull force, cause high tides. They occur in the areas closest to and farthest from the moon.

How often high tide occurs?

Hide tides occur twice a day. Coastal areas experience high tides every 12 hours.

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What are the reasons for the several day delay in a primary response. Infection______. A. transport to secondary lymphoid tissue

Liula [17]

Answer:

The correct answer is D. proliferation and differentiation.

Explanation:

Primary immune response occurs due to the first exposure of an antigen to the immune system. The primary immune response is generally delayed by many days because it takes time for B and T cells to become cloned and to proliferate and differentiate.

Then after several days of proliferation and differentiation of activated T and B cells, T cells become effector T cells and B cell becomes plasma cells which then eliminates the antigen. Memory B and T cells are also produced during this process which helps in generating a quick immune response during the second and subsequent exposure of that antigen.

So the correct answer is D. proliferation and differentiation.

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3 years ago

What is the best definition of activation energy

coldgirl [10]

<span>The lowest quantity of energy that the reacting species must possess in order to undergo a specified reaction.</span>

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4 years ago

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Answer: