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Mollusks and Annelids

Total questions: 16

Worksheet time: 22mins

Name
Class
Date
1.

Which of the following are sometimes seen on the sidewalk after it rains?

a)

flatworms

b)

roundworms

c)

earthworms

d)

tapeworms

2.

What is another name for annelid worms?

a)

roundworms

b)

segmented worms

c)

closed worms

d)

flatworms

3.

Which kind of annelid worm is most common?

a)

earthworm

b)

leech

c)

marine worm

d)

flatworm

4.

Which mollusk use tentacles to grab food?

a)

snails and slugs

b)

octopuses and squids

c)

clams and oysters

5.

A hard outer layer called a ______________________ protects some mollusks from predators.

a)

Mantle

b)

shell

c)

foot

d)

visceral mass

6.

Mollusks are _________________invertebrates

a)

soft bodied

b)

hard bodied

c)

ridged

d)

None of these

7.

Mollusks have

a)

Radial symmetry

b)

Bilateral symmetry

c)

No symmetry

d)

None of these

8.

One of these is NOT an example of a Mollusk

a)

Snail

b)

Squid

c)

Octopus

d)

Jellyfish

9.

One of these is NOT grouped as a type of Mollusk

a)

Gastropods

b)

Bivalves

c)

Cephalopods

d)

Sea anemone

10.

Which is the only phylum of worm to have any kind of circulatory system?

a)

Platyhelminthes

b)

Nematoda

c)

Annelida

11.

Mollusks have

a)

bilateral symmetry

b)

radial symmetry

c)

no symmetry

12.

What is this a picture of

a)

A snail

b)

A Beetle

c)

A crab

d)

A squid

e)

A seaanemone

13.

Which one is a no shell mollusk?

a)

Curd

b)

Slug

c)

Oyster

d)

Mussel

14.
The three main phlya of worms include
a)
roundworms, tube worms, and flat worms
b)
roundworms, flatworms, and segmented worms
c)
flatworms, segmented worms, and marine worms
15.
Which of the following is an example of a segmented worm?
a)
Tapeworm
b)
Nematode
c)
Leech
d)
Planarian
16.
What type of symmetry do annelids have?
a)
none
b)
radial
c)
bilateral