A high degree of ecological specialization
Which of the following factors contributes most to the development of adaptive radiations?
a.
A high degree of ecological specialization
b.
Genetic drift due to founder effect
c.
Weak natural selection
d.
High dispersal ability
The expansion of a group of related organisms into a wide variety of ecological niches is called
a.
allopatric speciation.
b.
adaptive radiation.
c.
founder effect.
d.
convergent evolution.
Genetic drift is most likely to occur in
a.
small populations.
b.
widespread populations.
c.
the absence of natural selection.
d.
response to natural selection.
An individual’s fitness is a function of
a.
survival.
b.
survival and reproduction.
c.
genotype and environment.
d.
mutations and selection.
An organism’s _____________ is the product of its _______________ and environment.
a.
phenotype; genotype
b.
fitness; reproductive success
c.
survival; fitness
d.
genotype; phenotype