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Brums [2.3K]
3 years ago
7

Please help I was in a student president meeting and they pulled me out of science and math I don’t have a well understanding of

this. God bless

Biology
1 answer:
lions [1.4K]3 years ago
8 0
Sexual reproduction creates more genaric diversity because it needs two creatures.
While asectual only needs one person.
if it only requires one person then the offspring recieves that persons genes.
in sexual reproduction it requires two people wich means tge offspring receves half of each persons genes and since no one has the ecact same genes then it creates more genetic diversity.
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Action potentials (nerve impulses) are changes in the membrane potential that, once started, will affect the entire excitable me
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Answer:

The order of events would be:

4.Threshold stimulus, Na+ channels open.  This is the first event

5.Na+ influx, Depolarization. Second event

2.Na+ channels close, K+ channels open.  This is the third event

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3.Hyperpolarization, K+ channels close

Explanation:

In resting state, the membrane is negative inside, and  K+ concentration is higher than outside.   Na+ concentration is higher outside instead.  

Sodium influx is responsible for membrane depolarization.  It's the event to produce the action potential.  When sodium channels are closing, potassium channels open and K+ go outside until repolarization occurs. But now we have both ions in different sides of the membrane, and this can't be stimulated again to produce other action potential. The membrane will remain refractory to respond to the adequate stimulus until ions migrate to their original sites.  This is Na+ outside, and K+ inside.  This is responsibility of the Na+/ K+ pump, that uses ATP to pump Na+ out, and  K+ in. Once both ions had been relocated in the membrane, this is ready to receive a correct stimulus to produce a new action potential.

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D. To identify any differences between the control group and the

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