AST BIO Evolution

123456789101112131415
Across
  1. 2. he process through which populations of living organisms adapt and change
  2. 4. fossils remain of lifeforms that show features typical of two distinct groups.
  3. 5. a condition where a gene is not changing in frequency across generations.
  4. 10. Features of various species that are similar in function but not necessarily in form.
  5. 11. a rapid increase in algaes amount in a body of water.
  6. 12. a group of similar organisms that are able to reproduce.
  7. 13. fossils used to define and identify
  8. 15. a theory that describes all living things that exist today developed from earlier types.
Down
  1. 1. organs of the body which are smaller in related species.
  2. 3. rocks formed near or on Earth's surface.
  3. 6. a supercontinent that involved almost all the landmasses on Earth.
  4. 7. body parts of animals that have a similar structure.
  5. 8. selective breeding
  6. 9. a water-based ecosystem does when too many nutrients are added to it.
  7. 14. the ability for an organism to survive and reproduce