Science Vocabulary Choice Board Chapter 9 - B. Loperbey 03/02/26/

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Across
  1. 2. connects fetus to mother for nutrient and gas exchange
  2. 7. shedding and replacing of an exoskeleton, skin, or feathers
  3. 9. has a backbone
  4. 10. animal that generates its body heat from the inside
  5. 12. symmetry of body parts are arranged in a circle around a center point
  6. 14. skeleton is on the outside of the body
  7. 15. an organism that lives in or on another organism, harming it
Down
  1. 1. does not have a backbone
  2. 3. cannot be cut into equal halves
  3. 4. animal that heats its body from its environment
  4. 5. changes in form as animal becomes an adult
  5. 6. skeleton is on the inside of the body
  6. 8. organs that exchange carbon dioxide for oxygen in water
  7. 11. symmetry can be split into left and right sides in only one way
  8. 13. protective membrane that surrounds the embryo