chapter 16 & 17 Vertebrates: Fish, Amphibians, Reptiles, Birds, and Mammals

Fishes from jdrinks

http://www.brainpop.com/science/diversityoflife/fish/

Amphibians and reptiles from jdrinks

Birds from Kerrie Pastell

Characteristics of mammals from jdrinks

Vertebrate Vocabulary Unit #9

1. vertebrate: animal that has a backbone

2. internal fertilization: fertilization that occurs inside the female’s body

3. endotherm: animal that can body heat from chemical reactions to maintain body temperature

4. lateral line: row of sense organs that detect water vibrations

5. gill: organ in which oxygen from water is exchanged with carbon dioxide from the blood

6. placental mammal: mammal whose embryos develop inside the mother’s body

7. swim bladder: gas filled sac that helps a fish float

8. lift: upward force on an object, like a bird’s wings

9. brooding: act of sitting on eggs and using body heat to keep them warm

10. tadpole: aquatic fish shaped larvae of a frog or toad

11. uterus: organ in a placental mammal in which the embryo grows

12. ectotherm: organism that needs sources of heat outside of itself

13. fur: thick coat of hair

14. gestation period: in mammals, the length of time between fertilization and birth

15. external fertilization: fertilization that occurs outside the female’s body

16. monotreme: mammal that lays eggs

17. molting: shedding of exoskeleton, skin, feathers, or hair to be replaced by new parts

18. diaphragm: dome shaped muscle attached to the lower ribs that helps the mammal bring air into lungs

19. lung: organ in which oxygen from the air is exchanged with carbon dioxide from the blood

20. altricial: chicks that are weak and helpless for a while after hatching

21. marsupial: mammal that carries and nourishes its young in a pouch

22. metamporphosis: phase during which there is a rapid change from immature to mature form

23. keel: large breastbone that anchors the flight muscles of a bird

24. fins: fan shaped structures that help fish move

25. amniotic egg: type of egg surrounded by a membrane (amnion), contains a yolk, and has a shell

26. preening: act of grooming or maintaining feathers

27. contour feather: external feather that covers a bird and helps determine its shape

28. precocial: chicks that are active soon after they hatch

29. mammary gland: in a female mammal, a gland that secretes milk

30. down feather: soft feather that covers body of young bird and provides insulation

31. scales: bony structures that protect fish’s body and lower friction