Which is defined as the nerves that connect the central nervous system to all parts of the body?

a.
central nervous system (cns)

b.
the cerebrum and cerebellum

c.
peripheral nervous system (pns)

d.
none of the above

The image shows ekgs of a person with normal heart waves and of a person having tachycardia. based on this image, what kind of condition is tachycardia? a. the heart beats abnormally fast. b. the heart beats abnormally slow. c. the right atrium of the heart stops working. d. the left ventricle pumps less blood to the aorta.

Which plant has a visible leaf modification that will it conserve water in extremely dry environments?

Study the picture of the ocean. which is the best example of an organism’s niche shown in the picture? a. the environment contains several of the same species of coral. b. the shallow area of the ocean meets the needs of the coral and the fish. c. the ocean has fish and coral that live in the same area. d. the coral take in food from the water and provide shelter for the fish.