Is the female or male chromosome the sex determiner for many species.

Match the functions to the cell types ? contraction and relaxation. conducting electrochemical signals fighting diseases carrying genetic material

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?

Which of the following is the function of the nociceptors? a. detecting odors in the nose b. detecting painful stimuli c. detecting central body temperature d. detecting touch and pressure