The theory that evolution occurred slowly and that changes accumulate over long time periods is 

A. gradualism.
B. punctuated equilibrium.
C. convergent evolution.
D. divergent evolution.


A. gradualism.

Biology & Microbiology

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Among cats, there is great variation in color and length of coats from long-haired, orange and

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These traits associated with fur type are examples of __________ traits.

a. acquired b. inherited c. evolutionary d. genomic

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Carbon is stored in what form?

a. biomass b. fossil fuels c. limestone rocks d. shells of animals e. all of these

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What is the basis of Herman Muller's Ratchet theory?

A. That parthenogenesis does not increase genetic variability. B. That once harmful mutations arise, asexual populations have no way of eliminating them. C. That meiosis reduces the chromosome number in half. D. That synapsis must occur for crossing over to take place. E. That evolution is due to mutations, not crossing over.

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Which pair of animals is probably most closely related evolutionarily?

A) animals in the same phyla B) animals in the same genus C) animals in the same family D) animals in the same class

Biology & Microbiology