Which of the following is an organic compound?
A. hydrochloric acid (HCl)
B. salt (NaCl)
C. sucrose (C12H22O11)
D. water (H2O)
E. None of these choices are correct.
C
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________ is in high concentration in the pulmonary capillary blood.
A. Mucus B. Nitrogen C. Oxygen D. Carbon dioxide
When a woman in her fifth decade of life is not pregnant and has stopped having menstrual cycles for ________, she is said to be in menopause.
A. 2 months B. 6 months C. 4 months D. 18 months E. 1 year
Stretching of the cervix causes an increase in the blood levels of
A) estrogen. B) progesterone. C) oxytocin. D) relaxin. E) chorionic gonadotropin.
When a rod located in the retina is stimulated by light,
A) the cell depolarizes. B) the inactive form of retinal associates with bleached opsin. C) the release of neurotransmitter increases. D) the activity of transducin decreases. E) the intracellular concentration of cGMP decreases.