types of speciation

Question 1

Allopatric speciation

Answer 1

occurs when populations are separated by a geographical barrier and diverge genetically. Gene pool becomes so distinct that the 2 groups are unable to interbreed when re-introduced

Question 2

Adaptive Radiation

Answer 2

The diversification of a common ancestral species into a variety of differently adapted species

Question 3

Sympatric Speciation

Answer 3

occurs when populations that live in the same habitat diverge genetically and become reproductively isolated.

Question 4

Human Impact:

Answer 4

Conversion of wilderness into cropland
Development areas for tourism
Building urban subdivisions and roads

Question 5

Outcomes:

Answer 5

Speciation through adaptive radiation after geographical isolation
Speciation through genetic drift after bottleneck effect
Species endangerment/extinction due to insufficient genetic diversity from population isolation