Across
- 3. annual movement of an entire species
- 4. linear tranfser of energy within an ecosystem
- 6. body covering of mammals,
- 8. dug by some mammals, like armadillos
- 11. body covering of fish and reptiles,
- 12. left in the mud by the foot of animals,
- 14. external protection for arthropods
- 16. provides all basic needs for species, like food, water, shelter, and space
- 19. secreted by amphibian skin to keep them moist
- 20. animal group name that means "two lives" usually one in water and one on land
- 21. transition experienced by most amphibians and insects
- 25. animal that only eats plants
- 26. animal covered in fur, born alive, warm-blooded
Down
- 1. covered in scales, lives in water,
- 2. animal that only eats other animals
- 5. an animal with an exoskeleton, jointed legs, and antennae
- 7. built by birds
- 9. community of interacting organisms and their environment
- 10. body covering of birds,
- 13. animal covered in feathers, hatched from eggs
- 15. animal that eats both plants an animals
- 17. an arthropod with 8 legs
- 18. annual behavior to minimize risk in winter
- 22. animal droppings
- 23. connected network of energy transfer chains
- 24. animal hatched from eggs (usually), cold blooded
