1. Two species of squirrels could potentially interbreed, but in one species the

Question

1. Two species of squirrels could potentially interbreed, but in one species the females become fertile only for 2 weeks in July while the males of the other species only actively court females during November. This is an example of what kind of barrier to reproduction?

a. Post-zygotic barrier

b.Allopatric speciation

c.Temporal/behavioral isolation

d.Structual isolation

2. Lions and tigers are able to have offspring together, but thses offspring are typically infertile. This is an example of what kind of barrier to reproduction?

a.Post-zygotic barrier

b.Allopatric speciation

c.Temporal/behavioral isolation

d.Structual isolation

3.When a pioneer species first arrives at an un-colonized island and over time explodes into many new species and forms this is...

a. Sexual selection

b.Adaptive radiation

c.Peripatric speciation

d.Both b and c

Explanation / Answer

1. Two species of squirrels could potentially interbreed, but in one species the

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