The answer is C.
Organism, population, community, ecosystem, biosphere
Answer:
You must therefore be aware that the skull of craniate (with skull) vertebrates consists of different parts which enclose the brain, cranial nerves and other sense organs present in the head. The part of the skull, enclosing the brain is called the cranium and is composed of several bones.
Absorption. Digested food molecules are absorbed in the small intestine . This means that they pass through the wall of the small intestine and into our bloodstream.
Answer:
(a) an aquaporin
Explanation:
An aquaporin is a water channel which forms a pore in the cell membrane and facilitates the movement of water. Aquaporin is an integral membrane protein (permanently attached to the membrane) that enables the in and out flow of the water. This channel also prevents the passage of ions and other solutes, so it cannot change the voltage. There are four types of aquaporins, and they are mostly found in the kidney with the function of water reabsorption.
