Once meiosis is complete, how many chromosomes does each gamete have?
A. 12 plus a sex chromosome
B. 46 (23 pairs)
C. 92 (46 pairs)
D. 23
Answer: D
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The gonads
A. are the male testes and female ovaries, which are homologues. B. produce gametes. C. are dormant until puberty. D. secrete sex hormones. E. All of the choices are correct.
The plasma proteins found in the highest concentrations are ____________________.
fibrinogen albumins regulatory proteins globulins none of the courses are correct
Cells of the macula densa in the kidney function to:
a. Constrict the diameter of the afferent arteriole supplying the glomerulus b. Reabsorb amino acids from the urine c. React to urinary sodium and chloride and stimulate juxtaglomerular cells to se-crete renin d. Secrete angiotensin to elevate blood pressure during conditions of dehydration e. Secrete sodium into the urine
Responses made possible by motor signals transmitted by the parasympathetic nervous system tend to be displayed throughout the body simultaneously because
there is much divergence of nerve pathways and close anatomical association between presynaptic neurons and their ganglia as well as accessory activity with the adrenal glands. Indicate whether the statement is true or false.