Across
- 3. Anatomy of which checks if organisms share a C.A.
- 5. base of all known fossils and when/how they evolved.
- 7. Structures that have C.A.
- 8. A type of Structure that has no purpose.
- 9. something that chemically controls how the body is structured.
Down
- 1. An Early Stage of animal Development in the womb or egg of the parent.
- 2. A Law of which old fossils are deeper than the new, young fossils.
- 4. Type of fossil that has been dated.
- 6. Build of organisms that roamed long ago.