The type of body symmetry in which any plane passing through the body from the mouth to the opposite end divides the body into mirror images is
A. longitudinal symmetry.
B. mirrored symmetry.
C. bilateral symmetry.
D. radial symmetry.
E. asymmetry.
Answer: D. radial symmetry.
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The proteome refers to
A. the protein complex responsible for degrading ubiquitin labeled proteins. B. all of the proteins that an organism produces. C. which proteins are secreted from the cell. D. the composite database of amino acid sequences.
How are the spores of zygomycetes such as Rhizopus dispersed?
A. by the wind B. by insects C. by the rain D. by swimming with flagella E. by animals
An important message from the work of Thomas Malthus that influenced Charles Darwin was
A. animals tended toward "human perfection." B. only a fraction of any population will survive and reproduce. C. population size of humans can only increase linearly. D. inheritance of acquired characteristics. E. none of these. Charles Darwin was influenced by John Ray not Thomas Malthus.
When a person straightens her arm, she is flexing the triceps brachii. During this movement, the triceps are referred to as the
A. tendon. B. antagonist. C. agonist. D. All of these. E. None of these.