A cinereous mourner bird’s chicks resemble the poisonous larvae of flannel moths. This is an example of____
a. aposematic coloration
b. Müllerian mimicry
c. competitive exclusion principle
d. cryptic coloration
e. Batesian mimicry
ANSWER: e
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Once bound to a hormone, this receptor becomes active and catalyzes the transfer of a phosphate group to itself or intracellular proteins.
A. G-protein coupled receptor B. enzyme-linked receptor C. ligand-gated ion channel receptor D. mechanoreceptor E. thermoreceptor
Which of the following is considered a keystone predator?
A) mussels B) starfish C) kelp bed D) kelp bass
A dog is following the scent of a jackrabbit. Which of the following accurately describes how the dog's brain integrates information for smell?
a. Chemoreceptors in the brain send impulses for smell in the nasal cavity. b. Chemoreceptor cells in the nasal cavity send impulses to the appropriate area of the brain. c. Chemoreceptors on epithelial cells of the tongue send hormones to the appropriate area of the brain. d. Receptors originating in the nose send action potentials to the motor regions of the brain.
Which of the following characteristics of genetic material accounts for the need to get a flu vaccine every year, but a polio vaccine once in a life time?
A. transmission B. variation C. information D. replication and transmission E. replication