Across
- 5. theory that changes the earths crust
- 8. theory of evolution based on the physical changes in an organism lifetime
- 9. tools designed to understand the similarity between protein structure
- 11. physical features in organisms that share a common ancestor
- 13. the process through organisms changing or adapting
- 14. the variation between a group of individuals
- 16. all the people born and living at the same time
- 17. patterns of inheritance of specific traits
- 22. study of history of life on earth
- 26. group of one species
- 27. preserved traces or remains
- 28. the ability for an organism to pass on genetics
- 29. group of islands
- 31. variety
- 33. selective breeding process
- 38. a change or difference in condition
- 39. different ways of mass extinction
- 41. an agreement or settlement
- 42. the idea that species change overtime
- 45. each generation producing more offspring than the environment can support
- 46. compromises the brain and spinal chord that is modified into the central nervous system
- 47. structures in embryonic development of vertebrates
Down
- 1. structures with no functions related to their ancestors
- 2. alteration in nucleic acid
- 3. a direct line of decent within a group
- 4. being in serious risk of extinction
- 6. seed eating bird
- 7. species that are similar in function but not structure
- 9. dna sequence that resembles a gene
- 10. a related group of living things
- 12. environment a species lives in
- 15. carfully thought out explanations for observations
- 18. biological inheritance proposed by gregor mendel
- 19. a branch of biology that covers the distribution of plants and animals
- 20. dna sequence
- 21. skeletal bone that supports the body
- 23. understanding the functions, features, and structure of dna
- 24. a group of organisms that can reproduce with one another
- 25. second highest rank below domain
- 30. the gradual development of something
- 32. gradual reform of something
- 33. the act or process of adapting
- 34. animals with a notochord
- 35. two or more dna sequences all at one gene
- 36. English naturalist who invented the theory of biological evolution
- 37. a descendent
- 40. a role an organism plays in a community
- 43. having no living members
- 44. the preservation of the early stages in an animals time
