8 Phylum

Question 1

Arthropoda

Answer 1

Example: Cray fish, Crab

Description: Exoskeletons; jointed appendages

Question 2

Echinodermata

Answer 2

Example: Snake

Description: Larvae bilaterally symmetrical; internal skeleton made of calcium carbonate

Question 3

Cnidaria

Answer 3

Example: Hydra, Moon jelly

Description: Jelly-like bodies; two cell layers; many have tentacles; many are radically symmetrical

Question 4

Platyhelminthes

Answer 4

Example: Planarian

Description: Flat, bilaterally symmetrical bodies; three cell layers; many are parasitic

Question 5

Nematoda

Answer 5

Example: Roundworm

Description: Round-bodied worms; many are transparent

Question 6

Mollusca

Answer 6

Example: Snail, Clam

Description: Soft bodied; usually surrounded by s protective shell

Question 7

Annelida

Answer 7

Example: Earthworm

Description: Worms with segmented bodies

Question 8

Porifera

Answer 8

Example: Bath Sponge

Description: Pores all over body; only one cell layer; only one opening to the body cavity