2.7
2.8
2.9
100

Class of arthropods with hard crusty shells. 

crustaceans

100

A flat-bodied arthropod with numerous legs. 

centipede

100

The soil that has passed through an earthworm's body which can enrich the soil. 

casting

200

The hard shell that protects a crab's body.

carapace

200

It means plant-eater. 

herbivore

200

It means "head-foot"

cephalopod

300

This is what crustaceans use to crush their food and for self defense. 

pincers

300

It has stink glands that it can use to defend itself. 

millipede

300

It means "stomach-foot"

gastropod

400

Shedding of shell to make room for expanding body is called?

molting

400

What does the term carnivore mean?

flesh-eater

400

What is an annelid?

segmented worms

500

These are leglike limbs that help lobsters move not only when they are swimming but also when walking on the ocean floor. 

swimmerets

500

What is the difference of centipede and millipede when it comes to the number of legs per segment?

centipede: one pair per segment; millipede: 2 pairs per segment

500

Soft-bodied animals that may have a shell for protection.

Mollusks