Periodical cicadas may be able to interbreed but never do because they emerge to breed at different times. This is an example of a ________ isolating mechanism categorized as ________ isolation

a. prezygotic / behavioral
b. prezygotic / temporal
c. postzygotic / mechanical
d. postzygotic / hybrid inviability


b

Biology & Microbiology

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Species of Shewanella, Geobacter, and some cyanobacteria have evolved a strategy to enable their use of insoluble compounds as electron acceptors: the production of electrically conductive ________ that transfer electrons from the terminal point in the ETC to a metal surface.

What will be an ideal response?

Biology & Microbiology

New alleles in a population come about through ____

a. natural selection b. genetic drift c. gene flow d. inheritance e. mutations

Biology & Microbiology

The seeds of angiosperms develop within

A. cones. B. cotyledons. C. petals. D. ovaries.

Biology & Microbiology

A new antibiotic has been developed.  It acts as a noncompetitive inhibitor. How will this antibiotic affect delta G for the enzyme-catalyzed reaction?

A. Delta G will increase. B. Delta G will be unaffected. C. Delta G will decrease.

Biology & Microbiology