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1. Explain the roles within evolution and speciation with examples a. dispersal b. genetic drift c....

1. Explain the roles within evolution and speciation with examples

a. dispersal

b. genetic drift

c. dobzhansky-muller incompatibility

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Answer #1

A. Dispersal of organism or species from one habitat to another leads to the evolution of new species. It's all depends on the environmental conditions and genetic variations.

Biological dispersal is nothing but movement of individuals or species from the birth site to the breeding site or from one site to another site for food, shelter, breed.  

This involves 3stages. Like departure, transfer, and settlement. It shows consequences at the level of the species.

This leads to the evolution of new species as the dispersal of individuals to the sub populations can increase the overall connectivity of the population.  

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