Which of the following is used as an electron carrier by living organisms?

A. NADP+
B. Ubiquinone
C. NAD+
D. All of the choices are correct.


Answer: D

Biology & Microbiology

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Recombination frequency is used to measure the distance between genes located on nonhomologous chromosomes

A. true B. false

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Which of the following could be considered an oligotrophic (growing at low nutrient levels) environment inhabited by alpha-proteobacteria?

A. Anaerobic environment B. Growth in food items C. Symbiotic growth D. Remote marine environments

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Which statement about amoebas is false? a. Most amoebas are predators in freshwater habitats

b. Some amoebas live in the guts of animals. c. Amoebas live as single cells. d. No species of amoeba is pathogenic.

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Like the kidney, a dialysis machine leaves what in the blood?

What will be an ideal response?

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