Which of the following structures in the male reproductive system secretes a fluid that nourishes and 

protects sperm?

ANS: Prostate Gland

Which of the following is a function of the circulatory system?

ANS: To transport hormones

Emphysema caused by damage to alveoli from toxins and pollutants is likely to result in the body 

having difficulty performing which of the following action?

ANS: Exchanging oxygen and carbon dioxide

A cell is placed in a hypertonic solution, Which of the following describes the resulting osmosis?

ANS: There is no net flow of water out of a cell

Which of the following pathways best represents the expected flow of blood from the human heart to 

an organ?

ANS: Blood pumped from the heart first enters arteries that then narrow to form arterioles that deliver 

blood to capillaries of the organ.

Which of the following is a function of the integumentary system?

ANS: Storage of fat

Sunlight can damage epithelial cells of the skin, but limited exposure to ultraviolet radiation results in 

the benefical production of which of the following?

ANS: Vitamin D

Which off the following skin layer contains dead cells?

ANS: Stratum Corneum

Histones are proteins associated with which of the following?

ANS: DNA

Which of the following is an efferent neuron that is responsible for releasing a neurotransmitter that 

stimulates a muscle cell?

ANS: Motor neuron

Which of the following body system is the primary system involved in preventing an infection when a 

cut in the skin allows bacteria to enter the body?

ANS: The immune system

Which of the following organs filters excess solutes from the blood?

ANS: Kidney