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inessss [21]
4 years ago
12

Darwin was pilloried for his theory of evolution through natural selection. ("Pillory" is a big word from the 19th century; it w

asn’t nice.) He has been dead for a while now, and thus doesn’t care. But his idea is still the basis of debate today. Science supports most of his theory. Describe, briefly, the central principles of Darwin’s Theory of Evolution through Natural Selection.
Biology
1 answer:
lukranit [14]4 years ago
7 0

Answer:

The central principle of Darwin theory is based on the fact that,

He observed that  in a given population,organism usually produced more offspring  than than they can naturally capable of taken care of to replace the parents population.And this leads to increase in large population.

Despite this large population the natural population  remain stable over a long period of time.

Because in  this population organisms compete for needed resources for survival, thus certain organisms with special characteristics or traits were able to  for survive better, and therefore get the natural resources, and resist the selection pressure while others which can not, will be removed from the population. Hence there is competitions for the natural resources,

Therefore organisms  that survived were better adapted, because they must have inherited the  survival traits or genes from their parents. This surviving traits is caused by  variation.And is is responsible for their  better adaptation  and survival in the population.

A s this continues the population of the survived organisms will dominates,This is because these organism are  naturally selected by nature,  and able to resist  the  selection pressure.

They are known as the survival of the fittest, and their selection advantages due to variation (caused be mutation) is responsible for their dominating population and natural selection compare to the less selected ones.

Explanation:

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Power stroke (myosin head bends) coupled with the release of ADP and phosphate

Explanation:

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The myosin head goes in the direction of the M line, holding the actin with it in the process causing the filaments to orientate nearly 10 nm in the direction of the M line--- power stroke (force is produced), the sarcomere reduces in length and the muscle contracts.

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