Across
- 5. frogs are unable to live to live in this kind of water
- 6. how many main amphibian species are there?
- 8. what is the earliest known apmhibian species?
- 11. frogs have backbones, which also makes them ---
- 12. what are a group of frogs called
- 13. what time of day do salamanders hunt?
Down
- 1. how do frogs swallow their food?
- 2. frogs skin produce---
- 3. how many species of poisonous toads are there?
- 4. where does the word amphibian come from?
- 5. other than their lungs, what can frogs breathe through
- 7. frogs must stay close to water because they have ---- skin.
- 9. of the three main amphibian species, which is the largest
- 10. like butterflies,frogs go through a cycle called ----.