Chapter 13 Lesson 3 vocab

Edit Answers
123456789101112131415161718
Across
  1. 1. the study of gene structure and function
  2. 3. species that are more similar have a closer one of these
  3. 5. body parts that have similar structure but different function
  4. 8. body parts that have lost their original function through evolution
  5. 12. a structure that all vertebrate embryos have which develops into something which regulates calcium
  6. 15. the study of the development of embryos from fertilization to birth
  7. 16. all organisms on earth have these
  8. 17. the functioning of cats' forelimbs
  9. 18. another word for split
Down
  1. 2. body parts that have similar function but different structure
  2. 4. the study of similarities and differences among structure of living species
  3. 6. what something does
  4. 7. scientists use this predictable rate at which DNA mutates to estimate when species diverged
  5. 9. the way something is put together or looks
  6. 10. the functioning of birds' forelimbs
  7. 11. what genes are made of
  8. 13. the presence of a pelvis in a whale suggests that their ancestor had these
  9. 14. the functioning of humans' forelimbs