The first person to suggest a general definition of species was

A. Charles Darwin.
B. Carolus Linnaeus.
C. John Ray.
D. Joseph Priestly.


Answer: C

Biology & Microbiology

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The first epidemiologist was ________.

A. Robert Koch B. John Snow C. Louis Pasteur D. Edward Jenner

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If a single nondisjunction occurs during

anaphase II of meiosis in a normal male cell from meiosis I, of the resulting sperm,

a. three would be normal and one would have an extra chromosome. b. two would be normal, one would have an extra chromosome, and one would be missing a chromosome. c. two would have an extra chromosome and two would be missing a chromosome. d. all four sperm would have an extra chromosome. e. three would have an extra chromosome and one would be normal

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Runners are modified stems that resemble

roots and are also known as a. stolons. b. rhizomes. c. bulbs. d. corms. e. tubers

Biology & Microbiology

During RNAi, what do miRNAs target for destruction?

A) heterochromatic regions of DNA B) CpG islands C) mRNAs D) histones E) ribosomes

Biology & Microbiology