Biology - Extra Credit Puzzle Crossword

Change in the heritable characteristics of biological populations over successive generations.
The process whereby organisms better adapted to their environment tend and produce more offspring.
the breeding of plants and animals to produce desirable traits.
The formation of new and distinct species in the course of evolution:
Termination of an organism or of a group of organisms, normally a species.
The action or process of adapting or being adapted.
A change or difference in condition, amount, or level, typically with certain limits.
The genetic contribution of an individual to the next generations gene pool.
The branch of biology and medicine concerned with the study of embryos and their development.
A similar structure that can be found in very different animals, often pointingbto a common ancestor.
Various structures in different species having the same function but have evolved separately, thus do not share a common ancestor.