In the phase of matter, atoms or molecules are held in a rigid structure. they are free to vibrate but cannot move around.

a. gas

b. solid

c. plasma

d. liquid

What is usually (but not always) related to the metabolic processes of living organisms in its organic form?

Stephen is a student who wants to test his knowledge of medical terminology. which option could he use?

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.