Having no nucleus, a biconcave shape, and the function of gas transport would describe a ________.
A. albumin
B. platelet
C. white blood cell
D. red blood cell
Answer: D
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An initial stimulus produces a response that reinforces the stimulus in
A) positive feedback. B) homeostasis. C) negative feedback. D) regulation. E) integration.
Vitamin D must be activated by the ____________________ and ____________________
Fill in the blank(s) with correct word
Smoking affects the cardiovascular system in all of the following ways except
What will be an ideal response?
Which of the following is a result of increased sympathetic stimulation of vascular smooth muscle?
A. Filtration of fluid from capillaries to interstitial fluid increases. B. Total peripheral resistance (TPR) decreases. C. The percentage of blood volume in the veins increases. D. Blood flow to the brain decreases. E. Venous return of blood to the heart increases.