7-BIO-Interim Q3

3. An animal that eats both plant and animal food
6. A close ecological relationship between two different species
12. An animal that kills and eats other animals
13. The way animals hide by blending in with their surroundings
14. A pouch in a bird’s digestive system where swallowed food is stored
15. A set of eggs
18. An animal with specially shaped teeth that feeds mainly on meat
19. A mammal that lays eggs, such as a duck-billed platypus
21. A living thing that eats other living things
23. One of the halves of the Earth created by an imaginary division along the equator
25. An animal with a constant temperature; endothermic animals are also called warm-blooded
26. Small, overlapping plates that protect the skin
27. A warm-blooded animal with hair that feeds its young on milk

1. An organ used to breathe underwater
2. An animal that eats only plant food
4. A chamber in an animal’s stomach that grinds up food
5. A journey by an animal to a new habitat
7. A gas-filled bag that helps a fish to float in water
8. A cold-blooded vertebrate that lives partly in water and partly on land
9. A living thing that makes its own food
10. A cold-blooded vertebrate with scaly skin
11. The milk-producing organ of a female mammal
16. The immature form of a frog or toad
17. An animal that is killed and eaten by other animals
20. An animal with a backbone
22. A young bird at the time it leaves the nest
24. An animal whose temperature varies with its surroundings; ectothermic animals are also called cold-blooded