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Andreyy89
3 years ago
6

Which hormone uses a second messenger mechanism? testosterone estrogen norepinephrine cortisol none of these choices?

Biology
1 answer:
jeka943 years ago
4 0

<span>Norepinephrine uses the Second Messenger System, which means, cells signal to each other what molecules have been released that will trigger a physiological reaction. </span>

<span>
This phenomenon is activated after the ligand  (ion or molecule) is bonded to its receptor (protein molecule), creating a variation that causes a chain-reaction, that will finally activate the Second Messenger. The latter will activate intercellular molecules that will be able to control the cell’s activity. </span>

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3 years ago
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givi [52]

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8 0
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What evidence supports Hess's theory of seafloor spreading? Check all that apply.
Zarrin [17]

The direction iron in ocean rocks points

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Explanation:

These bands are firmed when the iron minerals in magma orient themselves with the earth's magnetic field before the magma cols into rock and lock the minerals permanently in position. This magma upwells from the mantle to fill the void made when the tectonic plates are moving away from each other.

The earth's magnetic field on the other hand is dynamic. Its angle increases gradually from the true north or south and then flips orientation over several hundred years. The iron minerals therefore will align differently depending on the orientation of the earths magnetic field at the time. This is why the new crust has band-like features visible on its surface.

Learn More:

For more on seafloor spreading check out;

brainly.com/question/3616698

#LearnWithBrainly

6 0
4 years ago
Read 2 more answers
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