A physician specializes in surgery involving the following group of organs: mouth, esophagus, stomach and intestines. Overall, this physician is specialized at which level of organization?

(a). cell
(b). tissue
(c). organ
(d). organ system
(e). organism


Answer: (d). organ system

Biology & Microbiology

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What group of mammals have (a) embryos that spend more time feeding through the placenta than the mother's nipples, (b) young that feed on milk, and (c) a prolonged period of maternal care after leaving the placenta?

A) Eutheria B) Marsupiala C) Monotremata

Biology & Microbiology

Excess glucose is stored in large branched molecules of:

A. glycogen in animals. B. starch in bacteria. C. starch in animals. D. glycogen in plants. E. glycogen and starch in both animals and plants.

Biology & Microbiology

CO2 binds to ________ in the Calvin cycle.

A. water B. photosystem II C. glucose D. ribulose bisphosphate E. NADPH

Biology & Microbiology

The bacterium that causes cholera is capable of living independently in freshwater. As a consequence, cholera epidemics primarily involve (animal/non-living/zoonotic) reservoirs.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology