Two important unifying themes in biology are that (1) life is organized on many levels, and that (2): Please choose the correct answer from the following choices, and then select the submit answer button. Answer choices all living things can move, breathe, and communicate.
animals with bigger brains are capable of greater thought.
the genetic characteristics of individuals in a population change over time.
humans are more evolved and superior than bacteria.
living things can die.

Drag each tile to the correct box. the body monitors the levels of oxygen in the blood to regulate breathing. isabel is running in a marathon and is near the finish line. she feels out of breath. how will her nervous system work to generate a reaction? arrange the tiles in chronological order. isabel's breathing rate increases. sensory receptors in the arteries detect low oxygen levels. the brain sends signals through motor neurons. sensory neurons generate an impulse. the central nervous system relays an impulse to certain brain regions.