The only taxonomic category in which evolution can occur is the

a. genus.
b. species.
c. kingdom.
d. family.
e. class.


B

Biology & Microbiology

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Edge effects are the result of which of the following?  

A.  Populations of flora and fauna have emigrated from the core of their population center to the edge of their habitat. B.  Metapopulations of some of the larger fauna have become more dominant on the landscape and as a result have increased the edge of their habitat. C.  Habitat fragmentation or habitat shrinkage has occurred, and thus the edge of the habitat has increased in relative proportion. D.  Habitat fragmentation or habitat shrinkage has occurred, and thus the edge of the habitat has decreased in relative proportion. E.  Populations of particular species have decreased and are on the edge of extinction.

Biology & Microbiology

Most fungi are

A. aerobic or facultatively anaerobic. B. obligate anaerobes. C. obligate aerobes. D. microaerophiles.

Biology & Microbiology

An infection indigenous to animals but naturally transmissible to humans is called a zoonosis.

a. true b. false

Biology & Microbiology

Robert Chambers, a Scottish geologist and author of Vestiges of the Natural History of Creation, is often overlooked for which very important contribution:

a. the theory of the inheritance of acquired characteristics b. thinking of evolution in terms of populations not individuals c. proposing the enormous influence of the environment on evolutionary change d. All of the above

Biology & Microbiology