Across |
1. | birds lack these structures that reptiles have |
6. | lamprey are ___ because they suck blood from other animals |
7. | class or birds |
9. | gill cover |
10. | mammals have ____ or fur |
11. | biggest snake |
14. | biggest turtle |
17. | fastest reptile |
19. | mammals produce milk for their young in these structures |
22. | bird heart has a divided ____ |
23. | frog larva |
25. | coelacanth is an example of this type of bony fish |
26. | adult frogs and toads are this type of eater |
27. | type of habitat of the caecilians |
28. | hagfish are ____ because they eat dead matter on ocean floor |
31. | amphibians can breathe through this |
32. | bony fish have ____ reproduction |
33. | snakes have a ___point jaw attachment |
34. | mammals that lay eggs |
38. | poison in fangs |
40. | warm-blooded |
42. | type of fertilization in reptiles |
44. | these structures on mammals adapt to their food |
45. | caecilians lack these structures that other amphibians have |
48. | purpose of this is to spread oil and clean feathers |
49. | feathers that give the body shape |
50. | order of snakes and lizards |
53. | order rhynchocephalia |
55. | chambers in bird heart |
56. | gills of fish remove this from the water |
57. | this helps protect fish from predators and microorganisms |
58. | fish use these to help them move |