Two species of finches found on the same Galapagos island but feeding on different food sources is an example of _____- speciation.

A. allopatric
B. sympatric
C. prezygotic
D. postzygotic
E. outgroup


B. sympatric

Biology & Microbiology

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Which gland is associated with biological clocks or biorhythms?

a. pineal b. parathyroid c. hypothalamus d. pituitary e. thymus

Biology & Microbiology

Agents that can denature microbial proteins include all of the following except ________.

A. metallic ions B. acids C. alcohol D. moist heat E. X rays

Biology & Microbiology

Within the chordate classes, the unique characteristic of the class Aves is:

a. flight. b. production of uric acid. c. feathers. d. endothermy. e. a forked tongue

Biology & Microbiology

How many different termination codons are used in translation?

A. Three B. Two C. One D. Four

Biology & Microbiology