Which population's allele frequency is
considered to be fixed?
a. 30 chimpanzees: 100% are AA
b. 76 garter snakes: 50% are AA and 50% are
aa
c. 1100 fruit flies: 100% are aa
d. more than one of these
e. none of these
D
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Which type of medium distinguishes different types of microorganisms based on an observable change in the colonies or in the medium?
A. Differential B. Reducing C. Selective D. Enumeration E. Enriched
The relationship between the sea anemone and a pink anemonefish shown above is ____
a. a parasitic association b. predation c. resource partitioning d. a mutualistic association e. an epiphytic relationship
A true coelom develops within the ectoderm
____________________ Indicate whether the statement is true or false.
All of the following are types of light microscopes EXCEPT
A. fluorescent. B. confocal. C. phase-contrast. D. scanning tunneling. E. bright-field.