Receptors for the special senses are found
A. in internal organs.
B. throughout the integumentary system.
C. primarily in the head.
D. in the fingertips.
Answer: C
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Match the enzyme or hormone with the organ that produces it.A. Salivary glandsB. StomachC. LiverD. Small intestineE. PancreasGastric lipase
Fill in the blank(s) with the appropriate word(s).
Diffusion of a substance across the cell membrane is influenced by all of the following except
A) hydrolysis of ATP. B) the presence of the membrane channels. C) the charge of the substance. D) concentration gradient. E) lipid solubility.
Which region of the adrenal cortex synthesizes glucocorticoids?
A. Zona fasciculata B. Zona papillarosa C. Zona glucosa D. Zona glomerulosa E. Zona reticularis
Which of the following statements concerning erythrocytes is incorrect?
a. erythrocytes do not contain any organelles. b. erythrocytes may take on many different shapes. c. erythrocytes originate from the same undifferentiated pluripotential stem cells as leukocytes and platelets. d. erythrocytes are unable to utilize the O2 they contain for their own ATP formation. e. erythrocytes only live about 5 days.