Explain why hormones spread throughout the body only act on certain tissues and not others.

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?

Approximately percent of the energy created by cell metabolism is used by the body to carry on its normal functions, such as respiration, digestion, reproduction, muscular movement, circulation, and cellular regrowth.

In general, did the simulated mice align with your predictions from the punnett squares? yes or no?