Some viral pathogens evade detection by the vertebrate immune system by a mechanism that most likely involves what process?

A. Becoming a symbiont
B. Becoming metabolically inactive
C. Becoming a spore
D. Becoming nonvirulent
E. Frequent changing of surface antigens


Answer: E

Biology & Microbiology

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A researcher is comparing the species diversity of two islands. Both islands are roughly equal in size. However, one island is much closer to the mainland

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Biology & Microbiology

Glycolysis, pyruvate oxidation, and the citric acid cycle all have this molecule in common as one of

their products.

a. CO2 b. H2O c. ATP d. FADH2 e. NADH

Biology & Microbiology

Small, hollow membrane vesicles used to deliver therapeutic genes for gene therapy are called ________

A) liposomes B) gold particles C) retroviruses D) biocapsules E) None of these choices

Biology & Microbiology

According to one of the main hypotheses for the origin of life, what must have come first?

A. abiotic synthesis of organic monomers B. joining of small molecules to produce macromolecules C. packaging of molecules into pre-cells D. formation of replicating molecules that made inheritance possible

Biology & Microbiology