You discover a new particle. It has only RNA as a nucleic acid and lacks both a membrane and cytoplasm. This particle is a(n)
A) virus. B) archaea. C) prion. D) fungus. E) bacteria.
A
Biology & Microbiology
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Protein A has a strong affinity for
A) antigen. B) blood. C) protein. D) antibody.
Biology & Microbiology
Individuals considered at greatest risk for contracting brucellosis are:
a. dairy farmers. b. fishermen. c. prison guards. d. those working with exotic birds.
Biology & Microbiology
What process refers to dramatic phenotypic changes that sometimes occur in evolution, such as the
appearance of feathered wings during the evolution of birds? a. paedomorphosis b. gradualism c. macroevolution d. allopolyploidy e. microevolution
Biology & Microbiology
Cells naturally, without using energy, respond to changes in water concentration through the process of
a. facilitated diffusion. b. osmosis. c. phagocytosis. d. active transport.
Biology & Microbiology