Jane and Tom are worried about their newborn baby who has just begun to nurse, but chokes and turns blue whenever she is fed. Their baby most likely has a defect in her ________.
A. tongue muscles
B. muscle in the lower two-thirds of her esophagus
C. soft palate
D. muscle in the upper-third of her esophagus
E. epiglottis
Answer: E
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Membrane proteins serve many functions. One of the functions is transportation of substances across the membrane. If a cell biologist placed cells into an environment in which a chemical has been added that blocks the function of only carrier proteins, the process that will be affected is
A. active transport. B. osmosis. C. simple diffusion. D. phagocytosis. E. pinocytosis.
Alcoholic fermentation is the basis for
(a) bread baking. (b) beer brewing. (c) ethanol fuel production. (d) all of the above.
Plate tectonics explain that the amount of Earth being formed is much greater than the amount of the Earth's crust being destroyed in subduction zones.
Answer the following statement true (T) or false (F)
What term describes localized tumor growth?
a. metastasis b. carcinoma in situ c. pleomorphic d. anaplastic e. sarcoma