wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Zoology Invertebrate

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

What is the largest group of invertebrates, characterized by jointed legs and a hard exoskeleton?

a)

Mollusks

b)

Arthropods

c)

Cnidarians

d)

Echinoderms

2.

Which invertebrate group includes animals like octopuses, snails, and clams?

a)

Arachnids

b)

Mollusks

c)

Annelids

d)

Echinoderms

3.

What type of invertebrates are known for their segmented bodies and setae (bristles)?

a)

Arthropods (Insecta)

b)

Mollusks (Gastropoda)

c)

Echinoderms (Asteroidea)

d)

Annelids (Polychaeta)

4.

Name the invertebrates that have stinging cells and include animals like jellyfish and corals.

a)

Cnidarians

b)

Mollusks

c)

Echinoderms

d)

Arthropods

5.

What are flatworms called, known for their flattened bodies and lack of a body cavity?

a)

Annelida

b)

Nematoda

c)

Platyhelminthes

d)

Mollusca

6.

How many legs do most arthropods have?

a)

6

b)

4

c)

10

d)

8

7.

Which mollusk has a single, spiral shell to protect its soft body?

a)

clam

b)

oyster

c)

octopus

d)

snail

8.

What is the name of the process where arthropods shed their exoskeleton to grow?

a)

exoskeleton casting

b)

shedding

c)

skin peeling

d)

molting

9.

What is the name of the class of annelids that includes earthworms and leeches?

a)

Oligochaeta

b)

Polychaeta

c)

Gastropoda

d)

Hirudinea

10.

Which cnidarian has a bell-shaped body and tentacles with stinging cells?

a)

sea anemone

b)

coral

c)

jellyfish

d)

starfish

11.

What is the term for the free-swimming larval stage of many mollusks?

a)

nudibranch

b)

mantle

c)

radula

d)

veliger

12.

Which arthropod group includes animals like spiders, scorpions, and ticks?

a)

Crustaceans

b)

Mollusks

c)

Arachnids

d)

Insects

13.

What is the name of the class of mollusks that includes snails, slugs, and nudibranchs?

a)

Bivalvia

b)

Cephalopoda

c)

Gastropoda

d)

Anthozoa

14.

What is the name of the phylum that includes animals like sea anemones and jellyfish?

a)

Echinodermata

b)

Arthropoda

c)

Mollusca

d)

Cnidaria

15.

Which invertebrates are known for their ability to regenerate lost body parts?

a)

Starfish, planarians, and some species of worms

b)

Spiders

c)

Snails

d)

Jellyfish

16.

What is the name of the class of flatworms that includes tapeworms?

a)

Cestoda

b)

Platyhelminthes

c)

Annelida

d)

Nematoda

17.

Which annelids have bristles called chaetae on each body segment?

a)

Polychaetes

b)

Hirudinea

c)

Oligochaetes

d)

Cestoda

18.

What is the name of the process where cnidarians capture prey using their stinging cells?

a)

jellyfish capture

b)

sting deployment

c)

nematocyst discharge

d)

tentacle grab

19.

Which invertebrates have a nerve net instead of a centralized brain?

a)

Arthropods

b)

Cnidarians

c)

Echinoderms

d)

Mollusks

20.

What is the name of the class of arthropods that includes insects like beetles, butterflies, and ants?

a)

Insecta

b)

Mollusca

c)

Arachnida

d)

Crustacea