Theory of evolution by natural selection Crossword

A person who studies plants and animals by observing them
A slight difference in an inherited trait of individual members of a species
the process by which populations of organisms with variations that help them survive in their environments live longer, compete better, and reproduce more than those that do not have the variations
An inherited trait that increases an organism's chance of surviving and reproducing in its environment
An adaptation that enables a species to blend in with its environment
The resemblance of one species to another species
The breeding of organisms for desired characteristics
The study of similarities and differences among structures of living species
Body parts of organisms that are similar in structure and position but different in function
Body parts that perform a similar function but differ in structure
body parts that have lost their original function through evolution
The science of the development of embryos from fertilization to birth