Vocabulary #8 (Complex animals)

Definitions:

1. jointed-leg animal: invertebrate with an outside skeleton.
2. appendage: structure that grows out of an animal body.
3. exoskeleton: skeleton on the outside of the body.
4. molting: shelding the exoskeleton.
5. antennae: appendages of the head used for sensing smell and touch.
6. compund eyes: eyes with many lenses.
7. spiny-skin animal: invertebrate with a five part body design and spines.
8. tube feet; parts like suctions cups that help to get food, attach and move.
9. chordate: animal, that in some point of his live, has, a tough, flexible rod along it's back.
10. endoskeleton: skeleton inside the body.
11. cold-blooded: having body temperature that changes with the temperature of the surroundings.
12. gill: structure used to breathe in water.
13.  jawless fish: fish that have no jaw and are not covered by scales.
14. cartilage: tough flexible tissue that supports and shapes the body.
15. cartilage fish: fish in which the entire skeleton is made of cartilage.
16. bony fish: fishes that have skeleton made mostly of bone.
17. amphibian: animal that lives part of his live in water and the other part in land.
18. hibernation: state of being inactive during cold weather.
19. reptile: animal with dry, scaly skin and live on land.
20. warm-blooded: controling the body temperature so its stays about the same no matter the surrounding's temperature.
21. mammal: animal with hair that feeds milk to its young.
22. mammary glands: body parts that produce milk.

Illustrations:

1- jointed-leg animal:

2- appendage

3-exoskeleton

4- molting

5- antennae

6- compound eye

7- spiny-skin animal

8- tube feet

9-chordate

10- endoskeleton

11-  cold-blooded

12- gill

13- jawless fish

14- cartilage

15- cartilage fish

16- bony fish

17- amphibian

18- hibernation

19- reptile

20- warm-blooded

21- mammal

22- mammary gland