Across
- 7. The class of animals that breath through gills when young and through lungs/skin when adults
- 9. Animals that can make their own body heat even when it is cold outside.
- 10. This animal has beak and wing
- 11. Structure used by fish to breath
- 12. Key used by biologist to identify and classify organisms based on similarities and differences
- 14. Example of mammal that can fly
- 17. Type of vein patterns of leaves in monocotyledon plant
- 19. Animals that without backbones
- 21. Flowering plants that consist of one cotyledon in the seed
- 24. The process of planting trees in a forest where the number of trees has been decreasing
Down
- 1. Plant that reproduce by spore and grow in damp place
- 2. The class of animal that the body covered with hard scale
- 3. The natural place where organisms live
- 4. The body temperature become hotter and colder depending on the surrounding temperature
- 5. Refers to wide variety of organisms on Earth
- 6. The world's largest single flower
- 8. Maintain species in the original habitat or keep species out the original habitat
- 13. A non-flowering plant that produce seeds
- 15. Example of mammal that live in water
- 16. Type of root for monocotyledon plants
- 17. The mammal that lay egg
- 18. The Species of animals that live in groups in limited habitats at a particular location
- 20. Example of monocotyledon plants
- 22. Type of root for dicotyledon plants
- 23. Type of stem for dicotyledon plants