Across
- 2. unborn or unhatched baby.
- 6. change in living things over generations.
- 7. preserved organism from many years ago showing record of past life.
- 8. any living thing.
- 10. the study of bodily structure in humans, animals, and other living organisms.
Down
- 1. a scientist that studies the fossil record to better understand earth.
- 3. structures in embryos that will develop into gills in fish and the neck and the jaw in humans.
- 4. a system in organisms made up of bones; organisms can have an exoskeleton (outside the organism), or an endoskeleton (inside the organism.)
- 5. a type of biologist that studies how living things can grow from a simple cell into a complex living organism.
- 9. extension from the trunk or core of an organism.