Across
- 2. Live in water.
- 4. Dolphins are ........ mammals.
- 5. Our skeletal system is made of ........
- 7. Eyes is an example of ..... organ.
- 10. they give birth to their young ones.
- 11. also known as wind pipe.
- 12. Reptiles body are covered with ......
- 13. Lay eggs in nests.
- 14. Two spongy air filled bags are known as.....
Down
- 1. system helps in Breathing.
- 3. organs which present inside is known as.....organ
- 6. Also known as food pipe.
- 8. Lizard is a ...........
- 9. Live both on land and water.