Across
- 3. egg-laying mammals
- 4. entire period of growth from fertilization to birth
- 6. plant eater
- 7. animals with backbones
- 8. insect eater
- 12. an animal or plant that can no longer be found alive on earth
- 15. pouched mammals
- 17. small gnawing mammals
- 18. region between the uterus and developing young that allows exchanges of nutrients
Down
- 1. adhered to a place but able to move surrounding environment
- 2. meat eater
- 5. symmetry exhibiting mirrored images when cut down one plane
- 6. able to regulate body temperature (warm-blooded)
- 9. active at night
- 10. animal or plant at risk for becoming extinct
- 11. ability to move from place to place
- 13. mammals that have a special stomach divided into 4 sections
- 14. meat and plant eater
- 16. active during the day