Of the following, the majority of nutrient absorption takes place in the ______.
a) small intestine
b) esophagus
c) stomach
d) pancreas
e) colon
Ans: a) small intestine
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Chitin, a modified form of cellulose, is not only cross-linked with proteins but its glucose units are modified with atoms of:
A. nitrogen. B. hydrogen. C. oxygen. D. sulfur. E. phosphorous.
Ecdysone, a steroid hormone, controls ____
a. the menstrual cycle b. molting in arthropods c. the wake-sleep cycle d. the formation of hormone receptors e. the formation of sperm
Which of the following statements applies to sexually reproducing species but not asexually reproducing species?
A. Reproduction can occur with either one or two parents. B. The two "daughter" cells that result from cell division following mitosis are genetically identical to each other and to the original "parent" cell. C. Two kinds of cell division are required. D. Offspring are able to reproduce.
The hormone whose levels remain high when the body is suffering from inflammation and low glucose
levels is a. cortisol. b. somatotropin. c. thymosin. d. prolactin. e. parathyroid hormone.