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kipiarov [429]
3 years ago
10

As the heart beats, blood flows through the body. A heart beats starts when a small group of specialized muscle cells

Biology
1 answer:
LiRa [457]3 years ago
7 0
The answer is c the right atrium
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C. There are two types of glaciers: Alpine and Continental

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How would seasons on Earth differ if Earth's axis was at a 90 degree angle relative to its orbit?
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There would be no seasons anywhere on Earth

Explanation:

If the Earth's axis was not tilting and it was at a 90 degrees angle relative to its orbit, then the seasons on Earth would disappear. The climate on the planet would be defined by the latitude. The equator and the areas close to it would always have summer, as they will receive direct sunlight throughout all of the year. The mid-latitudes will always have temperate climate, reminding of spring and autumn, as the sunlight will not be very direct, but it will also not be very dispersed, jut enough to create a constantly pleasant climate. The higher latitudes will always have winter, as the sunlight will come at a very low angle throughout all of the year, thus it will be very dispersed, not enough to ever warm this parts enough, so they will constantly be under ice.

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Cerebrospinal fluid circulates within the ventricles of the brain and in the subarachnoid space outside the brain. Cerebrospinal
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true

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it plays a vital role in regulating  blood flow, through a process called cerebral auto regulation,This is needed to maintain efficient cerebral blood flow of oxygen and other metabolites, and withdraw of metabolic wastes from the brain.

in order to analyze it to diagnose some neurological diseases  its sample is usually taken out in a process called lumbar  puncture.

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autonomic

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