Vertebrate Animals

3. animals that eat plant and animal matter
8. the span of bones in the dorsal side of the body often called a backbone
11. order of animals that include chimpanzees and humans
13. protein that makes up hair, fur, claws and feathers
14. refers to the head side of the body
16. term for the time an offspring develops inside the uterus until birth
17. animals that eat exclusively other animals
18. an internal sac found just below the backbone of bony fish to help control their swimming depth
20. trait that allows an animal to maintain a constant body temperature not dependent on the outside temperature
21. refers to back side of the animal
22. type of mammal that provides the young with food and oxygen while inside the uterus

1. upper most part of the brain in vertebrates
2. type of mammal that develop for a short period in the uterus and complete their development inside a pouch
4. glands that mammals use to produce milk for their offspring
5. process used by many animals to keep eggs laid outside the body warm until the offspring hatch
6. winged mammal that used sonar for sensing
7. adapted scale found on birds that provides insulation and allows flight
8. refers to the side of the body consider the "belly"
9. tough connective tissue that cushions joints and is the main skeletal structure in sharks
10. group of mammals that have hair and mammary glands but lay eggs
12. teeth used to nip and bite
15. large Cetacean that filter feeds
19. order of animals that includes beavers, voles, chipmunks and rats