Course

Introductory Biology

Study Pack

Set 15 Speciation And Evolution

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Question 1

(Multiple Choice)

Free
Isolation mechanisms which occur after the formation of a zygote are called

A)gamete isolation mechanisms.
B)temporal isolation mechanisms.
C)postzygotic isolation mechanisms.
D)mechanical isolation mechanisms.
E)prezygotic isolation mechanisms.

Answer

Question 2

(Multiple Choice)

Free
A study of the concept of one species splitting into two or more new species would concern what?

A)polyploidy
B)speciation
C)prezygotic isolation
D)postzygotic isolation
E)alloploidy

Answer

Question 3

(Multiple Choice)

Free
When two closely related but separate species are crossed,their offspring are usually

A)more fit than the two parent species.
B)haploid.
C)prezygotiC.
D)sterile.
E)postzygotic.

Answer