Across
- 2. a person, typically one more remote than a grandparent, from whom one is descended
- 5. Anatomy is the study of similarities and differences in the anatomy of different species
- 8. At the heart of evolutionary theory is the basic idea that life has existed for billions of years and has changed over time
- 10. 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
- 11. Structure an organism that has lost all or most of its original function in the course of evolution, such as human appendixes
- 14. Structures
- 15. that biological systems – individuals and populations are different over space.
- 18. the state or process of a species, family, or larger group being or becoming extinct
- 20. 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
- 21. the state of being diverse; variety
Down
- 1. A British naturalist of the nineteenth century. He and others developed the theory of evolution
- 3. the action or process of adapting or being adapted
- 4. an animal of a large group distinguished by the possession of a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fishes
- 6. Structures an organ or bone that appears in different animals
- 7. hat has formed through the deposition and solidification of sediment
- 9. as for the matching of genes from a forensic sample with those of a criminal suspect
- 12. a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding
- 13. Selection the process whereby organisms better adapted to their environment tend to survive and produce more offspring
- 16. Selection The breeding of plants and animals to produce desirable traits.
- 17. the stock of different genes in an interbreeding population
- 19. Record to refer to the total number of fossils that have been discovered