Resident flora of the intestines include

A. Bacteroides.
B. Haemophilus.
C. Staphylococcus.
D. Streptococcus.
E. All of these choices are correct.


Answer: A

Biology & Microbiology

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Viruses are not considered to be alive, yet they share this ability with living cells:

a. They can metabolize food b. They can evolve c. They can reproduce on their own d. They can produce cell membranes e. They can synthesize proteins

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To stand upright for a long period of time without moving, the muscles of the back must produce which type of

contraction? a. isotonic b. isometric c. isocentric d. eccentric e. concentric

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The cell cycle of a typical somatic cell consists of the ____ and M phases

a. interphase b. meiosis I c. crossing-over d. meiosis II e. mitosis

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Sometimes hybrids are capable of reproducing; however, their offspring are incapable of producing future offspring. This is an example of _______ acting as a postzygotic isolating mechanism.

What will be an ideal response?

Biology & Microbiology