Which of the following is NOT true of diffusion in the human body?
A) Net movement of molecules occurs until the osmolarity is equal.
B) Diffusion occurs faster at higher temperatures.
C) Diffusion is rapid over short distances and slower over longer distances.
D) Smaller molecules take longer to diffuse than larger ones.
D) Smaller molecules take longer to diffuse than larger ones.
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Which of the following is not an effect of thyroid hormone?
a. increased metabolic rate. b. increased tissue responsiveness to catecholamines. c. increased absorption of iodine from the digestive tract into the blood. d. normal growth. e. normal development of the nervous system.
Matching
A) Smooth muscle B) Skin epidermis C) Tendon D) Cardiac muscle 17) Derived from mesenchyme. 18) Has a surface to which nothing is attached. 19) Moves blood through the body. 20) Moves food through the GI tract.
A skull with five gracile features and one robust feature is most likely a ________ skull.
A. male B. female
Once GnRH is released from the hypothalamus and enters the hypothalamohypophysial portal system,
A. it will inhibit FSH and LH secretion. B. testosterone is released from the anterior pituitary. C. the interstitial cells produce inhibin. D. estrogen production increases. E. FSH and LH secretion will occur.