Topics: Respiration, Immune System, Blood Cells Quiz
How does AIDS disrupt homeostasis?
A. It prevents the digestive system from breaking down food.
B. It weakens the immune system so the body can’t fight pathogens.
C. It stops mitochondria from carrying out cell respiration.
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Why do arteries have a thick muscle layer?
A. To provide energy for the blood vessel.
B. To prevent the blood flowing backwards.
C. To help withstand the high pressure blood, also to contract to control blood flow.