Across
- 2. / Mammals that nourish the baby inside the mother's body by the placenta
- 5. / the name given to vertebrates
- 9. / Animals that are given birth to and develop in the mothers pouch
- 10. / the word given to animals with no jaw and are parasites
- 11. / Bony fish that have fins on the back and on the side
Down
- 1. / They lay eggs (opposite of the mammal)
- 3. / Frogs, toads, newts and salamanders
- 4. / Sharks and rays belong to this phylum
- 6. snakes, crocodiles and lizards
- 7. / the name given to birds that are not mammals
- 8. / Includes animals that don't reproduce by eggs