Normally, skin color results from a combination ofa: melaninb: hemoglobinc: bilirubind: carotene
A. a, b, c
B. a, b, d
C. a, c, d
D. a, d
E. b, c, d
Answer: B
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Goats have a ________________ digestive system
Fill in the blank(s) with correct word
Match the following:
A) Fast (oxidative or glycolytic), fatigable fibers B) Slow (oxidative), fatigue-resistant fibers 1) Depends on oxygen delivery and aerobic mechanisms. 2) Have very fast-acting myosin ATPases and depend upon anaerobic metabolism during contraction. 3) Red fibers, the smallest of the fiber types. 4) Contain abundant amounts of glycogen. 5) Abundant in muscles used to maintain posture. 6) A relatively high percentage are found in successful marathon runners.
Action potentials pass from one myocardial cell to another through areas of low electrical resistance called
A. gap junctions. B. fibrous heart rings. C. electromagnetic discs. D. sarcolemma sclerotic plaques. E. tight junctions.
Muscarinic receptors are found on the effector cells innervated by the sympathetic division
Indicate whether the statement is true or false