I believe it is <u>instinct </u>that is the behavior of the caterpillar building a cocoon.
Option A would be the appropriate one as we know the common formula of carbs is CH2O we can get C10H20O10 by that formule! :)
Yes it is necessary for the production of apt in your cells because apt needs oxygen to form correctly.
Meiosis a type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell, as in the production of gametes and plant spores.