Answer - Well to put it in short terms.
Cells such as water cells or aquatic microorganisms need and required to have a large surface area increased. Because this helps them stay afloat without spending much amount of energy to float.
Folds, wrinkles, etc!
by folding the membrane of an organelle, surface area is optimized while volume remains the same. that is why mitochondria looks folded on the inside when you see pictures of it. the higher the surface area to volume ratio, the more efficient the organelle.
Check out this website http://science.jrank.org/pages/3421/Hummingbirds-Biology-hummingbirds.html
It is 200 million years because it has been around for a long time.
Answer:
D.
They break down dead organisms.
Explanation: