Proteins are synthesized on structures called ________.

A. chromosomes
B. ribosomes
C. lysosomes
D. mesosomes


Answer: B

Biology & Microbiology

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Contrast in microscopy is most commonly achieved by:

a. changing objectives for various specimens. b. increasing the resolution or resolving power. c. staining techniques. d. adding a blue filter to the light path.

Biology & Microbiology

Many organic compounds essential for life do NOT

assemble spontaneously in the presence of a. high concentrations of hydrogen. b. high concentrations of oxygen. c. low concentrations of carbon dioxide. d. nitrogen. e. hydrogen sulfide.

Biology & Microbiology

Succession that occurs on a site that was previously unoccupied by another community is called ________ succession

Fill in the blank(s) with correct word

Biology & Microbiology

Cattle egrets hitch a ride on domestic cows and eat insects that are stirred up by their activity. What term describes this relationship?

A) commensalism B) competition C) predation D) parasitism

Biology & Microbiology