Mules are an example of:

a. hybrid breakdown.
b. hybrid inviability.
c. hybrid sterility.
d. macroevolution.
e. microevolution


C

Biology & Microbiology

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Phenotypic differences between the sexes are called sexual ____

Fill in the blank with the appropriate word.

Biology & Microbiology

The optimum temperature for coral formation occurs where the average annual temperatures are between ____ ?C and ____ ?C

a. 18, 20 b. 20, 23 c. 23, 25 d. 25, 27 e. 30, 40

Biology & Microbiology

Researchers introduce DNA into plants by using ____

I. bacteria II. electric shocks III. chemical shocks

a. I only b. II only c. III only d. II and III e. I, II, and III

Biology & Microbiology

Each of the following is part of the energy transduction from solar energy to chemical energy except

A) light absorption by chlorophyll. B) electron flow through an electron transport system. C) unidirectional proton pumping across a membrane. D) an electrochemical proton gradient. E) All are involved in the energy transduction.

Biology & Microbiology