<span>Is the study of humankind in all times and places.
-the study of all humans throughout time and space. Hope it helped!</span>
C. The presence of predators could cause natural selection because it would mean survival of the fittest.
In cells, hydrogen peroxide is converted to water and oxygen through the activity of
<span>= ENZYMES</span>
It is called speciation.
So it'll be D. Speciation
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Answer:
The function of the pleura is to allow optimal expansion and contraction of the lungs during breathing. The pleural fluid acts as a lubricant, allowing the parietal and visceral pleura to glide over each other friction free. This fluid is produced by the pleural layers themselves.