The iron-sulfur world hypothesis suggests that organic molecules formed near:a
volcanoes.
b. sulfur pools.
c. pools of water.
d. hydrothermal vents.
e. low atmosphere clouds
d
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What type of blood vessels has the slowest velocity of blood flow?
A) arteries B) arterioles C) veins D) capillaries
Generation time refers to:
a. the number of years it takes for a generation to die. b. the amount of time required to replicate the DNA in a cell. c. the time it takes to complete one cell cycle. d. the time required for an individual in a species to achieve sexual maturity. e. the time it takes for a new mitotic spindle to form.
Paul Ehrlich used chemotherapy to treat
A) cholera. B) cancer. C) anthrax. D) smallpox. E) syphilis.
Reactivation of ________ in immunosuppressed persons may produce Kaposi's sarcoma, a cancer of the blood vessels
A) EBV B) HHV-6 C) cytomegalovirus D) HHV-8 E) BK virus