The study of evolutionary relationships among organisms is called ________.

A. biotechnology
B. genetics
C. taxonomy
D. phylogeny
E. recombinant DNA


Answer: D

Biology & Microbiology

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The total solute concentration of a solution of water and other substances (salts, proteins, etc.) is referred to specifically as its

A. osmolarity. B. tonicity. C. salinity. D. specific gravity. E. density.

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Helena’s doctor has advised her to take calcium supplements to help prevent:a

osteitis. b. osteoporosis. c. osteopenia. d. osteoarthritis

e. osteon disease.

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Enzymes needed to hydrolyze all types of macromolecules are found in ________.

A. centrioles B. Golgi apparatus C. mitochondria D. lysosomes

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Photoautotrophs use __________.

a. light as an energy source and CO2 as a carbon source b. light as an energy source and methane as a carbon source c. N2 as an energy source and CO2 as a carbon source d. CO2 as both an energy source and a carbon source e. H2S as an energy source and CO2 as a carbon source

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