The Animal Kingdom

6. means that an animal has sensory organs and a brain concentrated at one end.
9. Which animal is a “pore-bearer” with no symmetry, no gut, and no cephalization?
11. What type of symmetry do jellyfish have?
12. Periodic shedding of skin by squamates such as snakes and lizards is called ____.
13. Snakes often need sunlight to warm their sluggish bodies after a cold night because they are ___.
15. The term ___ comes from the Hebrew words meaning “created kind.”

1. skin is characterized by the ability to exchange oxygen and carbon dioxide.
2. Invertebrate phylum with jointed appendages of legs and antennae's are called
3. A mammal that has a pouch where its young develop is called a __________.
4. Sharks and rays are examples of __________ fish.
5. An animal with a ____ gut has a digestive system with two openings.
7. What kind of symmetry can be divided into left and right halves through a midline?
8. All animals are eukaryotes and _____.
10. An animal, such as a bird, that can regulate its inner body temperature is an ____.
14. Cephalopods, gastropods, and bivalves are animals found in the phylum _____.
16. A lobster is considered an ____ because it has no backbone.