The answers are
B. large grain sizes C. more precipitation D. warmer temperatures
Essentially the answer is in the names. Active transport requires energy to facilitate to movement of the materials while passive transport is something like osmosis which is when the material moves based on concentration in an effort to create equality between the two sides. Basically passive is when the materials move under the own power.
I believe the answer you're looking for is cellular respiration.
Answer: An adaptation is a change That’s happens to a species of animal over a long period of time. The point of an adaptation is to help the animal survive easier in the wild. An example would be a giraff’s neck. Giraffes adapted to have long necks so that they can reach the leaves on trees.
Explanation: