One part of Darwin’s theory is that individuals with
certain traits have an increased competitive edge.
The source of these traits is
a. adaptation to stress.
b. development over a lifetime.
c. inheritance.
d. mutation after birth.
e. all of these.
Answer: c
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What is the role of monoamine oxidase and acetylcholinesterase in the nervous system?
a. To produce neurotransmitter molecules. b. To serve as receptors for neurotransmitter molecules. c. To breakdown neurotransmitter molecules.
Biomagnification involves compounds having higher relative concentrations in ________.
A. lower trophic levels B. top consumers or higher trophic levels C. higher trophic levels D. top consumers
A blocked coronary sinus would block blood flow:a
into the superior vena cava. b. into the inferior vena cava. c. into the pulmonary arteries. d. returning from the pulmonary arteries. e. returning from the coronary circulation
A man is suffering severe foot pain in the area of what looks like a large wart. He reports he has had the wart for some time, and the pain and swelling have developed slowly. A sample from the lesion shows that the pus contains large cells that stain a
golden brown color. The man is likely suffering from A) sporotrichosis. B) necrotizing fasciitis. C) chromoblasomycosis. D) mycetoma. E) phaeohyphomycosis.