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.
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A. sporangium B. sporopollenin C. chitin D. peptidoglycan E. sporangia
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a. exocytosis b. osmosis c. endocytosis d. conjugation e. fractionation
What is the collective name for the epicotyl, shoot apical meristem, and young leaves?
a. coleptile b. radicle c. plumule d. hypocotyl
Which of the following provides insulation for the neuron?
a. synapse b. axon c. dendrite d. Schwann cell e. microglial cell