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Crazy boy [7]
3 years ago
6

Plzzzzz help quickkkkkk

Biology
2 answers:
ivann1987 [24]3 years ago
5 0
I believe the answer is b
lilavasa [31]3 years ago
3 0

Answer:

i would say B

Explanation:

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Assuming one nerve impulse must end before another can begin, what is the maximum firing rate of a nerve in impulses per second?
pav-90 [236]

Answer:

The correct answer is - 10³ seconds.

Explanation:

The nerve impulse is an electrical signal in which fluctuation in membrane potential occurs and forms an electrical signal that takes place that travels along the axon to the synapses.

Suppose a nerve impulse starts only when the first impulse ends according to the question so the one impulse last for the 10⁻³ second or 1 ms.  

Thus,  the nerve impulse fires per second will be equal to impulse generate in each second which is 1/10⁻³ = 10³.

Thus, the correct answer is - 10³ impulse per second or 1000 impulse per second.

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Metallothionein IIA is one of the metallothioneins that binds to heavy metal and helps cells to be protected from the toxicity of these heavy metals. These proteins are present in almost every eukaryotic organisms virtually. These proteins are highly induced to express highly in the present of heavy metals.

Thus, the correct answer is - regulation of the heavy metal and their toxicity.

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3 years ago
Explain Lamarck's ideas about how organisms changed over time.
djverab [1.8K]

Answer:

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8 0
3 years ago
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