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Oh my Gosh!
100

Does The coral has skeleton? 

no, it doesn't

100

Do "arthropods" have an exoskeleton?

yes, they do

100

What does "cephalopod" mean?

head foot (feet from the head)

100

Mention the 2 groups of inverterbrates that have exoskeleton 

artropods, mollusks 

200

Nematodes are the most abundant animals true or false?

true

200

Animals that have 2 shells

bivalves 

200

animals with sac-like body and a single body opening 

coelenterates (or jellyfish)

200

Group of Animals with radial symmetry, ex. Starfish

Echinoderms

300

hollow animals with pores

sponges

300

animals whose body is made of rings 

annelids 

300

snails, slugs, conch belong to which group of animals?

gastropods (or mollusks)

300

what is the most distinctive characteristic of sponges? 

they do not have nervous system 

400

animals with round UNSEGMENTED body

nematodes 

400

what does "gastropod" mean?

stomach foot (feet on the stomach)

400

Gastropods with no shell

slugs

400

What are the 3 groups of the most common worms?

segmented worms, flatworms, and roundworms

500

"sea cucumber" belongs to the group....

echinoderms 

500

clams, oysters mussels are in which group of animals?

bivalves (or mollusks)
500

What is the name of order of "flat worms"?

Platyhelminths

500

what are the 3 groups of mollusks? 

bivalves, cephalopods, and grastropods