Answer:
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Answer:
Cholesterol
Explanation:
Cholesterol is a lipid molecule produced by the liver, then transported to the membranes of animal cells. Cholesterol, which is found embedded in the plasma membrane of animal cells alongside other molecules like phospholipids, plays a vital role there.
The cholesterol of animal cell membranes help increase the fluidity of the membrane and also helps prevent the membrane from freezing during low temperatures.
Answer:
Selective breeding.
Explanation:
Humans have long bred animals, and especially, dogs, in order to create organisms with more desirable characteristics. A dog that doesn't shed hair sounds like a particularly desirable characteristic for any pet owner that keeps their dogs in the house, and therefore makes it more likely that the Maltese was deliberately designed to have this characteristic through selective breeding.
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the suns temp. was to high for vioatiles ( gases like water and methane ) to condense so only the materials with a higher melting point and higher density were able to form
The right atrium. The left atrium. right ventricle and the left ventricle
