Free Printable Invertebrates

Worksheets

Invertebrates

Total questions: 31

Worksheet time: 28mins

Name

Class

Date

Invertebrates are animals

with a backbone

without a backbone

What am I?

Arthropod

Cnidarian

Mollusk

Porifera

I am spiny, have a water vascular system with tube feet, radial symmetry, and am called a brittle star.

Mullosk

Arthropod

Echinoderm

Cnidarian

I am an arachnid, have four pairs of legs, and a body with two sections.

Echinoderm

Arthropod

Annelid

Porifera

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

Mollusk

Arthropod

Echinoderm

Cnidarian

I have a round body, which is divided into segments and a digestive tract with two openings. I am a leech. What Phyla am I in?

Mollusk

Echinoderm

Arthropod

Annelid/worm

I have spiny skin, water vascular system with tube feet, and a radial symmetry. I am a sea urchin.

Arthropod

Cnidarian

Echinoderm

Mollusk

I have a hard exoskeleton, a segmented body, pairs of jointed appendages, and live on land and water. I am a crab. What is my phylum?

Mollusk

Arthropod

Echinoderm

Cnidarian

I have four pairs of legs and a body divided into two sections. I am an arachnid.

Echinoderm

Cnidarian

Mollusk

Arthropod

10.

I have three pairs of legs and a body divided into three sections. As a butterfly, I have wings.

Echinoderm

Annelid

Arthropod

Mollusk

11.

What phylum am I in?

Echinoderm

Cnidarian

Mollusk

Annelid

12.

In what phylum am I?

Annelid

Mollusk

Echinoderm

Cnidarian

13.

I am spiny and have a water vascular system with tube feet. I am a sea cucumber.

Cnidarian

Echinoderm

Mollusk

Annelid

14.

Between 90-95% of all animals on earth can be classified as _____.

invertebrates

vertebrates

reptiles

mammals

15.

Which of the following is an example of a arthropod?

squid

crab

earth worm

sea star

16.

The organism shown is an example of a(n)

mollusk

cnidarian

sponge

echinoderm

17.

An invertebrate that has a brain and breathes through its skin is a(n) ________.

echinoderm

mollusk

segmented worm

18.

Which statement applies to ALL invertebrates?

They are made of only one cell.

They have no backbone.

They reproduce asexually.

19.

What do jellyfish have that sting to help them catch food?

eyes

tentacles

mouths

backbones

20.

Is the picture a vertebrate or invertebrate?

Vertebrate

Invertebrate

21.

The organism in the picture is a(n)

echinoderm

mollusk

arthropod

cnidarian

22.

Arthropods have an outer covering called a(n)_________

endoskeleton

bones

exoskeleton

armor

23.

I am an arachnid, have four pairs of legs, and a body with two sections.

Echinoderm

Arthropod

Annelid

Porifera

24.

What type of symmetry do Arthropods have?

Radial

Bilateral

Asymmetrical

25.

All arthropods have segmented bodies, jointed appendages, and ________________.

tails

lungs

wings

an exoskelton

26.

Which of these is not a major group of invertebrates?

Fish

Worms

Mollusks

Sponges

27.

What is a mollusk?

A sea worm

Animal that uses a muscular foot to move

Animal with eight legs

Harmful animal that lives in or on another animal

28.

An octopus is a mollusk without its shell.

True

False

29.

What is an endoskeleton?

Skeleton outside of an animal

Skeleton inside of an animal

A vertebrate

An invertebrate

30.

What are animals with tentacles that can sting called?

Insect

Cephalopod

Cnidarians

Arthropod

31.

Corals are cnidarians.

True

False

100 %

Invertebrates

Total questions: 31

Worksheet time: 28mins

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