The origin of species from pre-existing species is known as:

Gradual accumulation of adaptations to a changing environment leads to the origin of:

Geographic and reproductive isolation are most closely associated with

The theory of evolution applies to which of the following?

Goldschmidt has classified evolution into micro,macro,and mega evolution. Which one of the following is referred to as micro-evolution?

When two species of different genealogy come to resemble each other as a result of adaptation,the phenomenon is termed