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Excellent Examples

BodyParts &

Symmetry

Fascinating Facts

Out to Eat&

ClassifyingPotpourri

What are three examples of arthropods?

Any insects, arachnids, or crustaceans

What are the three types of worms?

Flatworms, roundworms, segmented worms

What are three examples of echinoderms?

Starfish, sand dollars, sea urchins

What are three examples of mollusks?

Clams, oysters, snails, squids, octopus

What are three examples of sponges?

Natural, yellow, glass

What is the definition of bilateral symmetry?

Animals that have two similar halves

What type of invertebrate has a body that is divided in identical

rings?

Segmented worms

Give an example of an invertebrate with radial

symmetry and one that is asymmetric

Radial: any echinoderms, cnidarians, etc.

Asymmetric: sponges, etc.

What are the two body forms of a cnidarian?

Polyps and medusas

What are the three main body parts of a mollusk?

Foot, visceral mass, and mantle

Which invertebrate has a body that looks like a pencil that’s

sharpened at both ends?

Roundworm

Which invertebrate has no head?

Echinoderm or sponge

Which invertebrate has no tissues or organs?

Sponge

What invertebrate has a head, thorax, and abdomen?

Arthropod

Explain the difference between bivalves, gastropods, and

cephalopods.

Bivalves: two shellsGastropods: one shell

Cephalopods: big heads, arms or tentacles

Which invertebrate catches its prey with tentacles?

Cnidarians

What type of invertebrate filters food from seawater?

Sponge

How do scientists classify invertebrates?

(Give all the categories)

Kingdom, phylum, class, order, family, genus, species

What are the two phylum (categories) that the animal

kingdom is broken down into?

Vertebrates and invertebrates

What is the scientific name for a polar bear?

Ursus maritimus

What is the name for an animal without a backbone?

Invertebrate

What word means made of many cells that carry out basic life

activities?

Multicellular

What is the difference between an endoskeleton and an

exoskeleton?

Endoskeleton: inside an animal’s body

Exoskeleton: outside an animal’s body

What specific type of invertebrate can make a human

very sick?

Tapeworm or roundworm

What type of invertebrate’s body is encased in an exoskeleton?

Arthropod