Applying what you know about punctuated equilibrium versus gradualism, which method of speciation is most likely to lead to punctuated equilibrium?
a. convergent evolution
b. geographic isolation
c. allopatric speciation
d. polyploidy
e. reproductive isolation
Ans: d. polyploidy
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Herbivores belong to which group in a food web?
A. secondary consumers B. primary producers C. tertiary consumers D. primary consumers E. decomposers
Males and females often differ in their reproductive strategies due to the fact that males can increase the number of
offspring they produce by ____ while females reproduce most successfully by ____.
a. mating with a high-quality female; mating with a high-quality male b. driving off other males; defending a productive territory c. defending a productive territory; enlisting multiple males to aid in raising her offspring d. mating with multiple females; mating with a high-quality male e. mating with multiple females; mating with multiple males
In 1882, the tropical volcanic island Krakatoa
exploded and was reduced to an abiotic island covered by a thick layer of volcanic ash. By 1933, populations of all of the following organisms were present. Which population was probably established after the others? a. ferns b. bacteria c. insects d. rodents e. mosses
In recombinant DNA technology, a vector is a self-replicating segment of DNA, such as a plasmid or viral genome
Indicate whether the statement is true or false