An unknown cell contains cholesterol. What type of cell is it most likely to be?
a. a bacterial cell
b. a fungal cell
c. a plant cell
d. an animal cell
Ans: d. an animal cell
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Why do we only see Neanderthal input in non-African genomes?
A. Neanderthals never interbred with Homo sapiens in Africa. B. Only mtDNA can be inherited. C. Only Y chromosome DNA can be inherited. D. Neanderthals were adapted to a cold European climate.
A bacterial cell exhibiting chemotaxis must have ________.
A. fimbriae B. metachromatic granules C. a capsule D. flagella E. thylakoids
Hoverflies are attracted to sweets at outdoor picnics. The reaction of humans is usually to flee because of the flies' uncanny resemblance to bees. The survival of hoverflies is enhanced by:
a. mimicry b. camouflage c. warning coloration d. chemical defenses e. display behavior
All animal cells lack a ________
Fill in the blank(s) with correct word