What contributes to muscle fatigue?
a. lactic acid buildup
b. glycogen depletion
c. both lactic acid buildup and glycogen depletion
d. loss of nerve innervation
e. stretching a muscle
C
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Define segmentation and indicate how the annelids, arthropods, and your body exhibit this phenomenon.
What will be an ideal response?
The stage of prophase I in which mammalian oogenesis can arrest for years is
A) leptotene. B) zygotene. C) pachytene. D) diplotene. E) diakinesis.
Which of these carry(ies) oxygen-poor blood?
A) pulmonary arteries B) pulmonary veins C) aorta D) left ventricle
The mucus-producing cells that line the stomach
A) increase the surface area of the stomach for faster digestion. B) stimulate production of hydrochloric acid. C) lubricate and protect the stomach lining. D) move food upward in the stomach to prolong digestion.