Many of today’s biologists have abandoned kingdom _____ since they have now discovered that many of these

unicellular organisms did not descend from one common ancestor.
a. Fungi
b. Plantae
c. Protista


d. Bacteria
e. Animalia


c

Biology & Microbiology

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In the process of nitrogen assimilation, ____ is converted to ____, which is then rapidly used to synthesize organic

molecules.

a. NH4+; NO3- b. N2; NO3- c. NO3-; NH4+ d. NH3; NH4+ e. NO3-; N2

Biology & Microbiology

A decrease in the function of the cardiovascular system due to aging can cause a decreased ability of the body to metabolize drugs.

Answer the following statement true (T) or false (F)

Biology & Microbiology

A fourth type of restriction enzyme is identified that cleaves at precise locations like a type II enzyme, but it also occasionally makes mistakes and cuts elsewhere. Would this type of enzyme be a useful enzyme to use in molecular cloning?

A. No, because cutting mistakes could lead to incorrect cloning. B. Yes, because it cuts correctly sometimes. C. Yes, because cutting mistakes don't matter in molecular cloning. D. No, because it is a precise enzyme.

Biology & Microbiology

All enzymes are proteins.

Answer the following statement true (T) or false (F)

Biology & Microbiology