<span>The correct option as to which is not a possible cause of erosion is none of the above. As a matter of fact, all of these options can cause erosion one way or another. Burrowing animals dig into the ground, and thus can cause chunks of earth to fall apart and cause erosion. Gravity and water can do the same thing, so none of these options are incapable of causing erosion, that is, all of them can do it.</span>
Answer:
C) it is necessary for the survival of the individual.
Explanation:
Sexual reproduction is rarely, if ever, necessary for the individual. This is not a reason for its importance. However, while not important for the individual, sexual reproduction is important for the species. It allows genetic variability among offspring, as well as mutations. This ensures that not all members of a species are the same, and in this way, they have a better chance of surviving. Moreover, it allows for offspring to be produced at a faster rate.
Active muscles demand huge amounts of oxygen, and the circulatory system works hard to provide it. Blood carries oxygen to the muscles. When the body is at rest, blood carries nutrients to the muscles so that they can repair and rebuild themselves. Blood also carries away the waste products that hard-working muscles produce, back out through the lungs to be filtered.
so they Circulatory system xx muscular system :)
Answer: A,B and C
Explanation
The process by which metabolic waste is eliminated from an organism.
