In contrast to the cephalic and absorptive phases, the fasting phase is characterized by high blood levels of ________ and low levels of _______.
(a) glucagon; insulin
(b) pepsin; insulin
(c) insulin; glucagon
(d) insulin; pepsin
(a) glucagon; insulin
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When mature, the ovary is referred to as a(n) ____ that encloses the angiosperm seed
a. ovule
b. endosperm c. fruit d. carpel e. inflorescence
The CFTR is a normal membrane protein used to move chloride ions out of a cell by active transport. This is an example of
A. a reduction reaction. B. a reaction coupled with the hydrolysis of ATP. C. an oxidation reaction. D. equilibrium. E. a reaction coupled with the production of ATP.
Choose the one most appropriate letter for each.
A. sharks B. crocodile C. placental mammal D. caecilians E. lancelets F. birds G. snakes H. placoderms I. lampreys J. opossum K. tunicates L. platypus M. bony fishes N. salamanders
The sex chromosome complement of a normal human female is
A) XO. B) XX. C) XY. D) YY.