DNA

3. the state or process of a species, family, or larger group being or becoming extinct
6. the action or process of adapting or being adapted
7. the process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth
9. Selection the process whereby organisms better adapted to their environment tend to survive and produce more offspring
10. the stock of different genes in an interbreeding population
13. hat has formed through the deposition and solidification of sediment
14. Record to refer to the total number of fossils that have been discovered
16. is the study of similarities and differences in the anatomy of different species
18. A British naturalist of the nineteenth century. He and others developed the theory of evolution
20. a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding

1. the state of being diverse; variety
2. an animal of a large group distinguished by the possession of a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fishes
4. an organ or bone that appears in different animals
5. that biological systems – individuals and populations are different over space.
8. Selection The breeding of plants and animals to produce desirable traits.
11. an organism that has lost all or most of its original function in the course of evolution, such as human appendixes
12. At the heart of evolutionary theory is the basic idea that life has existed for billions of years and has changed over time
15. as for the matching of genes from a forensic sample with those of a criminal suspect
17. a person, typically one more remote than a grandparent, from whom one is descended
19. with Modification is simply passing traits from parent to offspring, and this concept is one of the fundamental ideas behind Charles Darwin's theory of evolution