If you are asking to tell the difference between taste cells and olfactory receptors, taste cells are obviously for tasting substances and olfactory receptors are used for smelling.
The axis is an imaginary line going through the earth so the way the earth is "tilted" would tell you,for example, if the northern hemisphere is tilting toward the sun, it will be summer in the northern hemisphere.
It stores the cell's hereditary material, or DNA, and it coordinates the cell's activities, which include intermediary metabolism, growth, protein synthesis, and reproduction (cell division). The diverse functions of the ER are performed by distinct domains; consisting of tubules, sheets and the nuclear envelope.
Answer:
I think humans and whales are closely related on the evolutionary tree because they are both mammals and both have endoskeleton
