American sycamore(Platanus occidentalis) and European sycamore (Platanus orientalis) are tree species that will interbreed if planted nearby but will not normally interbreed because they occur on different continents. This is an example of

A. mechanical isolation.
B. temporal isolation.
C. habitat isolation.
D. behavioral isolation.
E. gametic isolation.


C. habitat isolation.

Biology & Microbiology

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The amino acid most commonly modified by phosphorylation is:

A. cysteine. B. tyrosine. C. tryptophan. D. alanine. E. leucine.

Biology & Microbiology

Describe the value of using twins in the study of questions relating to the relative impact of heredity versus environment

What will be an ideal response?

Biology & Microbiology

________ form when liquid stored in the gallbladder hardens into pieces of stonelike material

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

What do H2O, NaCl, CO2, and HCl all have in common?

A. All are inorganic. B. All are solutes. C. All are salts. D. All are gases. E. All are acids.

Biology & Microbiology