When a person's blood pH is too low, the kidneys will restore a healthier balance by ________
A) secreting more sodium ions into the urine
B) reabsorbing more hydrogen ions from the filtrate
C) secreting excess hydrogen ions into urine
D) slowing ventilation
C
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Which structure is also known as the birth canal?
A. uterus B. cervix C. vagina D. ovary E. fallopian tube or oviduct
Coelomates are
A. two embryos that develop in the same coelom. B. animals that have a true coelom. C. animals that have two coeloms. D. animals that have no coelom. E. animals in which the coelom disappears at gastrulation.
Body fluids in humans have a high buffering capacity because of
A) the presence of the bicarbonate/carbonic acid buffer system. B) the natural result of water as a solvent. C) hydrogen bonding between water molecules in biological fluids. D) shifts in blood pH that are required to maintain homeostasis.
oogenesis in females produces _________
Fill in the blank(s) with the appropriate word(s).