Invertebrates Chapter 2 Test

Match the following

• Sponges

• The simplest invertebrates

• Mollusks

• Planarians, flukes, and leeches

• Cnidarians

• Develop as a Medusa or polyp

• Flatworms

• Gastropods, bivalves, and cephalopods

• Earthworms

• The most common annelids

Match the following

• Mollusks

• Develop through incomplete metamorphasis

• Grasshopper

• All have chelicerae and a cephalothorax

• Arachnids

• Gastropods, bivalves, and cephalopods

• Butterfly

• Develop through complete metamorphasis

• Arthropods

• All have jointed limbs

What kind of circulatory system pumps blood into sinuses?

• Open circulatory system

• Water vascular system

• Closed circulatory system

• Open vascular system

What is the spiny part of an echinoderm?

• Chelicerae

• Mandibles

• Skeleton

• Skin

What is an endoskeleton?

• Internal skeleton

• External skeleton

• Group of sharp spines

• Shell

Which kind of animal changes its symmetry as it becomes an adult?

• Flatworm

• Echinoderm

• Annelid worm

• Arthropod

When the two sides of an amimal’s body mirror each other, it is called

• Radial symmetry

• Bilateral symmetry

• Asymmetry

• Segemented

Which of these is NOT a stage of complete metamorphosis?

• Egg

• Larvae

• Adult

• Nymph

A simple eye can detect light. What can a compound eye detect?

• An image

• More light

• Darkness

• Vibrations

Where do most animals digest food?

• Vascular system

• Gut

• Circulatory system

• Coelom