MCAS questions. Body Systems

Which of the following is the best example of an organism maintaining homeostasis?

• a wolf panting after a chase

• a spider catching an insect in a web

• a cricket becoming infected by a virus

• a mole digging tunnels in the ground

High levels of carbon dioxide in the blood trigger which of the following responses in the body?

• an increase in the rate of digestion

• an increase in the rate of breathing

• a decrease in the speed of the pulse

• a decrease in the production of sweat

What is the primary function of the large intestine?

• to digest proteins

• to absorb nutrients

• to break down complex carbohydrates

• to remove water from undigested waste

Capillaries are part of which body system?

• Skeletal System

• Integumentary System

• Circulatory System

• Nervous System

Nerve cells use which of the following to communicate with each other?

• Antibodies

• Electrochemical Signals

• Enzymes

• Simple Sugars

Which of the following is one of the functions of the human skeleton?

• producing hormones

• bringing gases into the body

• removing waste from the body

• providing a site for blood cell formation

Which of the following is the basic structural unit of the nervous system?

• axon

• neuron

• red blood cell

• white blood cell

In sexual reproduction, what is the source of the genetic material in a zygote?

• An egg cell only

• A sperm cell only

• Both, sperm and egg cells

• An egg cell and a polar body

Emphysema is a severe respiratory system disease. The disease causes damage that directly prevents the transfer of oxygen to the bloodstream. Which part of the respiratory system does emphysema damage?

• Alveoli

• Trachea

• Bronchi

• Larinx

Which of the following is a correct order in which air moves through the human respiratory system when a person inhales?

• nose, larynx, trachea, pharynx, bronchi, lungs

• nose, pharynx, larynx, trachea, bronchi, lungs

• pharynx, bronchi, nose, larynx, trachea, lungs

• pharynx, nose, trachea, bronchi, larynx, lungs