Across
- 3. Age of Mammals
- 4. allows direct inspection of hard parts or marked parts during performance
- 7. middle of the body
- 9. a plane that separates that anterior and posterior portion
- 14. known as the “coal-bearing” period
- 17. island contain its own assortment of species
- 20. action or property of a part as it works in an organism
- 22. electric record of muscles
- 23. proposed mechanism of inheritance of acquired characteristics
- 25. study of how decay and tissue disintegration affect fossilization
- 26. chest supports the forelimbs
- 29. molten rocks
- 31. features that share common ancestry
- 34. Age of Reptiles
- 35. a plane that splits the left and right portion
- 37. take its name from the Jura Mountains
- 38. he felt that species were unchangeable
- 40. to the front or belly
- 41. Age of Fishes
Down
- 1. repeated section
- 2. a plane that divides the dorsal and ventral portion
- 5. hips supports hindlimbs
- 6. visible life
- 7. produces new variations
- 8. closest to the body
- 10. a reproductive factory producing eggs and sperm
- 11. importance of ecological analysis in the examination of a morphological system
- 12. ancient rocks
- 13. proposed the young age of Earth
- 15. assortment of taxa
- 16. special case of homology
- 18. Darwin's Bulldog
- 19. method of placing fossils in a relative sequence to each other
- 21. sides of the body
- 24. early life
- 27. takes its name from rocks in Germany
- 28. feature that simply look alike
- 30. microorganism with nucleus and ability for sexual reproduction
- 32. careful anatomical description of an animal’s structural design.
- 33. farthest to the body
- 36. features with similar function
- 39. a kind of biological blueprint