A cluster of cases in a specific population occurring in a brief period of time is called a(n)
A. endemic.
B. pandemic.
C. outbreak.
D. attack break.
C
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An example of genetic variation used in pathogen survival may be
A. production of a comet's tail. B. protease production. C. inhibition of MHC Class I antigen production. D. changing the pilus type. E. production of a comet's tail AND protease production.
There are three alleles controlling the ABO blood
types. IA and IB are codominant genes so that the combination IAIB produces the AB blood type. The third allele, IO, is recessive to the other two alleles. Indicate which of these parents could produce the given child:Parents Child Yes or No (a) A x AB B (b) A x O A (c) A x B O (d) A x AB O (e) A x AB B (f) B x B O (g) AB x AB A What will be an ideal response?
Beta diversity, or turnover, would be at its minimum if all species occurred in all habitats within a region. Beta diversity would be at its maximum if each habitat had a unique biota, and regional diversity would equal:
A) the mean of the local diversities of all the habitats within the region. B) the sum of the local diversities of all the habitats within the region. C) the largest among the local diversities of all the habitats within the region. D) the smallest among the local diversities of all the habitats within the region.
________ use light as their source of energy and organic molecules such as carbohydrates as their source of carbon.
Fill in the blank(s) with the appropriate word(s).