Sympatric speciation differs from allopatric speciation because in sympatric speciation

A. a population becomes geographically isolated.
B. two populations of the same species merge to form a single population.
C. polyploidy must first arise.
D. hybrid zones form.
E. there are no physcial barriers against interbreeding.


E. there are no physcial barriers against interbreeding.

Biology & Microbiology

You might also like to view...

Which of the following is a component of the spore—or zygote—wall (in mosses, ferns, gymnosperms, and angiosperms) and helps prevent the desiccation of these structures?

A. sporangium B. sporopollenin C. chitin D. peptidoglycan E. sporangia

Biology & Microbiology

Cells actively secreting enzymes would likely carry out more ____ than other cells

a. exocytosis b. osmosis c. endocytosis d. conjugation e. fractionation

Biology & Microbiology

What is the collective name for the epicotyl, shoot apical meristem, and young leaves?

a. coleptile b. radicle c. plumule d. hypocotyl

Biology & Microbiology

Which of the following provides insulation for the neuron?

a. synapse b. axon c. dendrite d. Schwann cell e. microglial cell

Biology & Microbiology