The contractile vacuole of the paramecium is possibly an evolutionary precursor of the kidney.

a. true
b. false


Ans: a. true

Biology & Microbiology

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A gene that affects, prevents, or masks the expression of a gene at another locus is a(n) __________

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Lactic-acid bacteria are used for:a

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Prokaryotes reproduce rapidly and this allows genetic variation to spread quickly through a population. Two processes can create new variations in prokaryotic populations. Select the choice with those two processes.

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Biology & Microbiology