What method of movement requires the expenditure of ATP molecules?
A. Simple diffusion
B. Facilitated diffusion
C. Osmosis
D. Active transport
E. Bulk flow
Answer: D
Biology & Microbiology
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The leading edge of a hypha is in the __________ stage of cell division
a. anaphase b. interphase c. metaphase d. prophase
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The sensory receptors for the sense of smell are called ____ cells.
Fill in the blank(s) with correct word
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The part labeled "C" in the accompanying figure is ____.
A. a nucleus B. chromatin C. the nuclear membrane D. a vacuole E. a mitochondrion
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An experiment that was conducted by Gause in the 1930s with Paramecium clearly demonstrated
A. fundamental competition. B. exploitative competition. C. competitive exclusion. D. interference competition.
Biology & Microbiology