Species And Speciation

Question 0

Barriers between gene pools

Answer 0

Geographic isolation; temporal isolation; behavioral isolation; hybrid isolation

Question 1

Polyploidy

Answer 1

When a cell contains 3 or more sets of chromosomes; more common in plants

Question 2

Allopatric speciation

Answer 2

A new species forms from an existing species because of geographic isolation

Question 3

Sympatric speciation

Answer 3

A new species forms while living in the same area; timing, behavior, or polyploidy separates them

Question 4

Convergent evolution

Answer 4

Two species with very different phylogenies evolve to look similar

Question 5

Divergent evolution

Answer 5

Similar species evolving to look more and more different

Question 6

Gradualism

Answer 6

Evolutionary changes are small, continuous, and slow

Question 7

Punctuated equilibrium

Answer 7

Evolutionary changes are relatively quick followed by long periods of little change

Question 8

Balanced polymorphism

Answer 8

Sickle cell anemia

Question 9

Transient polymorphism

Answer 9

Peppered moths