The sum total of a population's use of the biotic and abiotic resources of its habitat constitutes its
A) environment.
B) evolution.
C) range.
D) niche.
Answer: D
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Mules are __________ and are subject to
__________. a. all males; postzygotic reproductive isolation b. all females; postzygotic reproductive isolation c. all females; prezygotic reproductive isolation d. hybrids; postzygotic reproductive isolation e. hybrids; prezygotic reproductive isolation
Shrews have been documented to travel across frozen lakes and establish populations on previously uninhabited islands. The low level of genetic diversity in the new populations is the result of
A) genetic drift. B) a population bottleneck. C) coevolution. D) the founder effect. E) assortative mating.
Yeast infection is another name for
What will be an ideal response?
Answer the following questions true (T) or false (F)
1. A pathogen will always use the same portal for both entry and exit. 2. While a reservoir can be a source of infection, not all sources of infection are reservoirs. 3. Members of the genus Vibrio, which includes the species which cause cholera are found in marine environments. However, most cases of cholera occur when people drink water that has been contaminated with feces from other humans with cholera. If an effective vaccine against cholera were developed so that humans would become immune to the disease, both the reservoir and the source of the cholera bacteria would be eliminated.