Explanation:

1.The gradual development of something, especially from a simple to a more complex or superior/bigger form.

2.Refers to the variety of life on Earth.

3.A particular type of species that is already g0ne to disappearanc3 .

6.a long and distinct period of history with a particular feature or characteristic.

4.a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding