Which of the following best describes the function of the sympathetic nervous system?
a. it creates equilibrium in the body.
b. it arouses the body and expends energy.
c. it raises the energy level of the body.
d. it calms the body and conserves energy.

Which of these statements is true about autotrophs, but not heterotrophs? a. they use sugar and oxygen to make carbon dioxide and water.b. they use chlorophyll and oxygen to make carbon dioxide and water.c. they use sunlight, water, and carbon dioxide to make sugars.d. they use sunlight, water, and oxygen to make chlorophyll.