Answer:
supporting a variety of organisms, cleaning oil from oceans, producing oxygen
Explanation:
While they do have some medical benefits, those are still being explored and its looking for <em>important roles </em>these seem more important.
They breathe through unseen holes in their heads. You may only see them with a microscope.
Answer:
The pattern of growth in which the child is able to control the head and neck before the arms and legs is known as Cephalocaudal Growth.
Explanation:
Cephalocaudal Growth.
This type of growth pattern happens with the humans when they are infants, where fastest growth takes place at the upper part of the body which includes, head. Then the growth started with the gradually lower parts like neck, shoulder etc.
