What metric unit would be most appropriate for expressing the size of most viruses?
a. Nanometer
b. Millimeter
c. Micrometer
d. Centimeter
Ans: a. Nanometer
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Which of the following is a characteristic of larval echinoderms?
A) bilateral symmetry B) spiral cleavage C) gastrovascular cavity D) exoskeleton E) lophophore
Four of the five answers listed below are true of a neuron at resting potential. Select the exception
a. The interior of a neuron is positive. b. The interior of a neuron has a negative charge. c. There are more sodium ions outside a neuron. d. There are more potassium ions inside a neuron. e. The membrane of a neuron is polarized.
These enzymes have the ability to cut DNA at places where specific sequences of nucleotides occur.
A. restriction B. ligases C. helicases D. polymerases
During inflammation, as edema increases, more pressure is exerted on nerve endings, leading to increased:
a. pain b. loss of function c. redness d. heat