Invertebrates- Arthropods and Nonarthropods

What is an invertebrate?

• An animal with a backbone

• a mammal

• An animal without a backbone

• animals with vertebrae.

Snails, squids, octopuses, clams, oysters and scallops all belong to the same group called?

• crustaceans

• arachnids

• arthropods

• mollusks- nonarthropods

A(n) _____________ is an invertebrate that has jointed legs, a body with two or more sections, and a hard outer covering.

• Exoskeleton

• Vertebrate

• mammal

• arthropod

The hard outer covering of an arthropod is called a(n)?

• Skeleton

• Exoskeleton

• Skin

• roof

Tags

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Most of the animals on Earth are?

• invertebrates

• vertebrates

• mammals

• birds

Choose all that apply: A lobster is an animal that lives in water and is classified as ____________.

• a vertebrate

• an arachnid

• a crustacean

• an arthropod

• an invertebrate

Except for the octopus and squid, most mollusks have what?

• a shell

• one arm

• 8 eyes

• feet

Tags

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The largest group of invertebrates are the?

• Arthropods

• Mollusks

• Corals & jellies

• nonarthropods

Dragonflies, stink bugs, and lady bugs are __________.

• crustaceans

• arthropods

• arachnids

• worms

I have a soft-body, a hard shell, and live on land and water. What am I?

• Mollusk

• Arthropod

• sponge

• worm