Most reptiles are ____ and their fertilization is ____
a. ovoviviparous; external
b. oviparous; external
c. ovoviviparous; internal
d. oviparous; internal
e. viviparous; external
d
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Which gland shrinks in size during adulthood and has hormones that function in maturation of T lymphocytes?
A. Lymph nodes B. Thymus C. Spleen D. GALT E. Tonsils
Which of the following is an example of predation?
A) a lizard's camouflage B) a hawk swooping down quickly to capture, kill, and eat a prairie king snake C) a goldfinch feeding on the seeds of a thistle plant D) the vivid colors of the poison-arrow frog in Costa Rica E) mechanical devices, such as quills in a porcupine
Which of the following is a function of the cell membrane?
A. breaks down lipids, carbohydrates, and proteins from foods B. stores water, salt, proteins, and carbohydrates C. keeps the cell wall in place D. regulates the movement of materials into and out of the cell
Tight junctions are composed of networks of all of the following except
a. claudin. b. occludin. c. junctional adhesion molecules. d. integrin.