Animals

3. A sea ___________________ will lay its eggs on land and return to the ocean.
7. A ______________________ is a reptile.
10. A __________________ is a type of fish.
11. An _______________________ has no backbone.
15. A reptile is _____________________, meaning their temperature changes with the environment.
17. Warm-blooded animals with hollow bones, wings, and beaks are _____________________.
18. ____________________ live their lives in water, are covered with scales or smooth skin, and breathe using gills.
19. Animals that are warm-blooded, have fur or hair, and feed their babies milk are called __________________.

1. A hard outer covering of an invertebrate is an _____________________________.
2. A ____________________ has a backbone.
4. Animals that are cold-blooded, have scales or bony plates, and lay eggs are called _____________________.
5. A ___________________ is a mammal with a mane.
6. Amphibians start their lives in ____________________, then change to live on land.
8. A type of invertebrate is an ______________________.
9. A type of mammal that lives in the ocean is a _________________.
12. A __________________ is an amphibian.
13. The only mammal that can fly is a _____________.
14. Animals that are cold-blooded, have smooth skin, and live on both land and water are called __________________.
16. Birds, fish, reptiles, and amphibians give birth to young by laying ___________________.
20. Mammals give birth to live young and feed their babies ____________________.