Science Vocab Chapter 13

123456789101112131415161718
Across
  1. 3. an adaptation that enables a species to blend in with its environment.
  2. 4. Structures body parts of organisms that are similar in structure and position but different in function.
  3. 6. Breeding the breeding of organisms for desired characteristics.
  4. 8. an inherited trait that increases an organism’s chance of surviving and reproducing in its environment.
  5. 9. a fossil copy of an organism in a rock.
  6. 10. Selection the process by which populations of organisms with variations that help them survive in their environments live longer, compete better, and reproduce more than those that do not have the variations.
  7. 12. a slight difference in an inherited trait of individual members of a species.
  8. 13. the impression of an organism in a rock.
  9. 15. Record made up of all the fossils ever discovered on Earth.
  10. 16. the science of the development of embryos from fertilization to birth.
  11. 18. Fossil the preserved evidence of the activity of an organism.
Down
  1. 1. Evolution the change over time in populations of related organisms.
  2. 2. a person who studies plants and animals by observing them.
  3. 5. Time Scale a chart that divides Earth’ history into different time units.
  4. 7. occurs when the last individual organism of a species dies.
  5. 11. Structures body parts that perform a similar function but different in structure.
  6. 12. Structures body parts that have lost their original function through evolution.
  7. 14. Anatomy the study of similarities and differences among structures of living species.
  8. 17. the resemblance of one species to another species.