Nematodes are unusual among worms of other major phyla by:

A. having longitudinal muscles but no circular muscles
B. having separate male and female individuals
C. by shedding their integument
D. by having a tough cuticle made largely of collagen
E. All of the choices provided are correct


E. All of the choices provided are correct

Biology & Microbiology

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____ is NOT a product of the Kreb cycle. 

A. Pyruvic acid B. ATP C. NADH2 and FADH2 D. CO2

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Which of the following reactions is a hydrolysis reaction?

A. A + B + H2O ? C B. A + B ? C + H2O C. A + H2O ? B + C   D. A ? B + C+ H2O

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A nosocomial infection is

A) always present, but is inapparent at the time of hospitalization. B) acquired during the course of hospitalization. C) always caused by medical personnel. D) only a result of surgery. E) always caused by pathogenic bacteria.

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What of the following is necessary for the replication process to occur in a cell?

A. enzymatic proteins B. viruses C. carbohydrates D. starches E. lipids

Biology & Microbiology