7-BIO-Interim Q3

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Across
  1. 3. An animal that eats both plant and animal food
  2. 6. A close ecological relationship between two different species
  3. 12. An animal that kills and eats other animals
  4. 13. The way animals hide by blending in with their surroundings
  5. 14. A pouch in a bird’s digestive system where swallowed food is stored
  6. 15. A set of eggs
  7. 18. An animal with specially shaped teeth that feeds mainly on meat
  8. 19. A mammal that lays eggs, such as a duck-billed platypus
  9. 21. A living thing that eats other living things
  10. 23. One of the halves of the Earth created by an imaginary division along the equator
  11. 25. An animal with a constant temperature; endothermic animals are also called warm-blooded
  12. 26. Small, overlapping plates that protect the skin
  13. 27. A warm-blooded animal with hair that feeds its young on milk
Down
  1. 1. An organ used to breathe underwater
  2. 2. An animal that eats only plant food
  3. 4. A chamber in an animal’s stomach that grinds up food
  4. 5. A journey by an animal to a new habitat
  5. 7. A gas-filled bag that helps a fish to float in water
  6. 8. A cold-blooded vertebrate that lives partly in water and partly on land
  7. 9. A living thing that makes its own food
  8. 10. A cold-blooded vertebrate with scaly skin
  9. 11. The milk-producing organ of a female mammal
  10. 16. The immature form of a frog or toad
  11. 17. An animal that is killed and eaten by other animals
  12. 20. An animal with a backbone
  13. 22. A young bird at the time it leaves the nest
  14. 24. An animal whose temperature varies with its surroundings; ectothermic animals are also called cold-blooded