Cnidarians alone have _____

a. nematocysts c. a hydrostatic skeleton
b. a mantle d. a radula


A

Biology & Microbiology

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In the lac operon, the product of structural gene lacZ is capable of ________

A) forming ATP from pyruvate B) forming lactose from two glucose molecules C) splitting the ?-linkage of lactose D) nonautonomous replication E) replacing hexokinase in the early steps of glycolysis

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Which one of the following do NOT apply to eukaryotic cells?

A. contain 80S ribosomes B. have histones C. have circular chromosomes D. exhibit growth via mitosis

Biology & Microbiology

The ____ carries sperm away from the epididymis.

A. vas deferens B. urethra C. seminal vesicle D. ejaculatory duct E. prostate

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What is the basal metabolic rate?

A. The base rate at which the body prevents obesity B. The rate at which the body uses energy when running C. The rate at which the body uses energy when hyperventilating D. The rate at which the body uses energy at rest E. The rate at which the body uses energy when walking

Biology & Microbiology