Bacteria that live around _________obtain energy by oxidizing inorganic hydrogen sulfide.

Fill in the blank(s) with the appropriate word(s).


Answer: deep-sea hot-water vents

Biology & Microbiology

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Electron microscopes differ from light microscopes in that

a. electrons are used instead of light. b. magnetic lenses replace glass lenses. c. the electron path had to maintained in a high vacuum. d. a, b, and c are all true.

Biology & Microbiology

Why is NaHCO3 considered a base in the following reaction? NaHCO3 + HCl ® NaCl + CO2 + H2O 

A. It contains hydrogen ions. B. It is a hydrogen ion acceptor. C. It donates hydroxide ions in this reaction. D. It results in the formation of CO2.

Biology & Microbiology

A flowering plant produces pollen in the

A) anther. B) style. C) stigma. D) fruit. E) ovule.

Biology & Microbiology

The largest molecule of the following is

A. glucose. B. a polysaccharide. C. a disaccharide. D. sucrose. E. a monosaccharide.

Biology & Microbiology