Test Annelida and Mollusca

Blood bathes tissues by soaking into open spaces (sinuses)

• intestine

• open circulatory system

• closed circulatory system

• mantle cavity

Annelid excretory organ.

• parpodia

• tentacle

• metamere

• nephridium

Muscles create movement by squeezing on fluid-filled spaces within the body's

• chromatophores

• hydrostatic skeleton

• cephalization

• hydrostatic foot

The term "annelid" means

• flat rings

• no ring

• round rings

• little rings

Annelids have an organ for temporary food storage called

• casting

• nephridium

• prostomium

• crop

The structure that forms a cocoon of fertilized eggs is a

• phyarynx

• annuli

• clitellum

• tentacle

The earthworm's mouth is called a ________?

• prostomium

• septa

• nephridium

• annuli

Some annelids have these bristles for anchoring and movement.

• crop

• nephridium

• ganglia

• setae

These are flash appendages of some annelids.

• castings

• parapodia

• annuli

• prostomium

What class of segmented worm contains the marine worms?

• Class Polyplacophora

• Class Hirudinea

• Class Polychaeta

• Class Oligochaeta