Some viruses are responsible for cancer in humans. this is due to
a. production of viral fluids in the bloodstream.
b. fermentation of acids in the digestive system.
c. destruction of cells by viral reproduction.
d. stimulation of muscle tone in the heart.

What effect do stimulants, such as cocaine, have on the nervous system? o a. stimulants change the activity of neurotransmitters. o b. stimulants mimic hormones and influence moods. o o c. stimulant|mchange how sensory information is processed. d. stimulants decrease brain activity.

Select the correct answer. which of these is a valid minimum educational requirement to pursue a career as a family resource coordinator? a. phd in child psychology b. bachelor's degree in social service c. experience working with school children d. basic training in child therapy reset next

Which describes the effect of prolonged stress on blood pressure? it causes blood pressure to decrease. it has little or no effect on blood pressure. it causes the heart to pump with more force. it causes blood pressure to increase.