Which of the following conditions favors sexual reproduction?
a. stable environment
b. uniform environments
c. sparsely settled populations
d. sessile animals
e. unstable environment
E
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The largest unit within which gene flow can readily occur is _____
A) a population B) a species C) the entire range of a genus D) the hybrid zone E) the entire range of a phylum
Erythropoietin, a hormone that stimulates stem cells in the bone marrow to increase erythrocyte production, is
produced in the ____.
a. bone marrow b. heart c. kidneys
d. liver e. lymph nodes
Which of the following has been used in recent years to clean up oil spills?
a. bioremediation b. endosymbiosis c. anaerobic transformation d. mycorrhizal association
The rapid appearance of animals in the fossil record occurred during the Ediacaran radiation
____________________ Indicate whether the statement is true or false.