In Lake Victoria, hundreds of cichlid fish species arose after the lake last dried up 12,400 years ago. This is an

example of ____.



a. sympatric speciation
b. the founder effect
c. gene flow
d. genetic drift
e. allopatric speciation


ANSWER: a

Biology & Microbiology

You might also like to view...

Cells that can detect and respond to a hormone are known as

a. target cells. b. regulator cells. c. receptor cells. d. messenger cells. e. endocrine cells.

Biology & Microbiology

How many levels of consumption are depicted

in the figure? a. 1 b. 2 c. 3 d. 4 e. 5

Biology & Microbiology

Which of the following terms is associated with the release of nonenveloped or complex viruses from the host cell?

A) Budding B) Exocytosis C) Lysis D) Phagocytosis E) Endocytosis

Biology & Microbiology

In a reversible chemical reaction at equilibrium, the concentration of X (the reactant) is 0.75 mol/L, and the concentration of Y (the product) is 2.25 mol/L. At 25°C, what would be the Keq?

A) 0.33 B) 3.0 C) 1.69 D) 1.50 E) 37.5

Biology & Microbiology