mollusks

1. Polyplacophora

1.1. have a pair of bristles per segment

1.2. some burrow through and eat sediments soem move freely and search for food

2. bivalvia

2.1. they eat by decaying plants and animals, getting carried by mucous strands on the cilia to stomach

2.2. They are very small and they are smoth but have many lines going doen there body making a design.

2.3. They use their body to help them move.

3. cephalopoda

3.1. they move by creeping, swimming with special fins and by squirting jets of water from and interior cavity

3.2. head is surrounded by a foot divided into tentacles. shell nautiluses have an external coiled shell

3.3. they eat by having horney beaks with which to tear or bite with

4. gastropoda

4.1. they have e asingle large cell which they can seek refugethe shell is secreted in 3 layers

4.2. they feed on grazers and suspension feeders

4.3. they move very slow they slide their way around. they dont have legs to walk like us.