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Marine Invertebrates

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.
All segmented worms belong to which animal phylum?
a)
Nematoda
b)
Platyhelminthes
c)
Annelida
d)
Nemertea
2.
Which class of Mollusks include clams, oysters, and mussels?
a)
Gastropods
b)
Bivalves
c)
Cephalopods
d)
Arthropods
3.
Which mollusk group does this represent?
a)
Class Gastropoda
b)
Class Bivalvia
c)
Class Cephalopoda
d)
Class Polyplacophora
4.
The word 'arthropod' means...
a)
eight foot
b)
jointed foot
c)
flexible foot
d)
hard foot
5.
All arthropods have segmented bodies, jointed appendages, and ________________. 
a)
tails
b)
lungs
c)
wings
d)
an exoskelton
6.
Phylum Porifera is known as 
a)
"stinging cells"
b)
"Tentacles"
c)
"Cleaners"
d)
"Sponges"
7.
To which group of mollusks does this animal belong?
a)
Class Gastropoda
b)
Class Bivalvia
c)
Class Cephalopoda
d)
Class Polyplacophora
8.
What type of symmetry do sponges (Porifera) have?
a)
asymmetry
b)
radial
c)
bilateral 
d)
medial
9.
Includes all flatworms
a)
Phylum Platyhelminthes
b)
Phylum Nematoda
c)
Phylum Annelida
10.
Which phylum of worms has a one-way digestive system, respiration through skin, and segmented body?
a)
Annelida
b)
Platyhelminthes
c)
Nemotoda
d)
Nemertea
11.
I am spiny and have a water vascular system with tube feet.  I am a sea cucumber.
a)
Cnidarian
b)
Echinoderm
c)
Mollusk
d)
Annelid
12.
I am spiny, have a water vascular system with tube feet, radial symmetry, and am called a brittle star.
a)
Mullosk
b)
Arthropod
c)
Echinoderm
d)
Cnidarian
13.
Sponges use pores to 
a)
move from place to place.
b)
filter food from the water.
c)
defend themselves.
d)
clean themselves
14.
I have a soft-body, a hard shell, and live on land and water.  What am I?
a)
Mollusk
b)
Arthropod
c)
Echinoderm
d)
Cnidarian
15.

What are these organisms?

a)

Sea anemone

b)

Sea star

c)

Sea sponge

d)

Sea urchin

16.

What type of body symmetry do these organisms have?

a)

asymmetry

b)

radial

c)

bilateral

d)

all of the answer choices are correct

17.

What are the specialized pigment cells found in cephalopods that help them blend into their surroundings?

a)

mimicry

b)

bioluminescence

c)

nematocysts

d)

chromatophores

18.

Classification system (starting from the largest group)

a)

phylum, kingdom, class, order, family, genus, species

b)

kingdom, class, phylum, order, family, genus, species

c)

kingdom, phylum, class, order, family, genus, species

d)

kingdom, phylum, class, family, order, genus, species

19.

This animal has what type of symmetry?

a)

Bilateral

b)

Radial

c)

No Symmetry

d)

Asymmetric

20.

This animal has what symmetry?

a)

Bilateral

b)

Asymmetric

c)

No symmetry

d)

Radial

21.

What phylum does an octopus belong to?

a)

cnidaria

b)

molluscs

c)

porifer

d)

sponges

22.

What phylum does this sea anemone belong to

a)

Sponges

b)

Molluscs

c)

Cnidaria

d)

Arthropoda

23.

Which phylum does this crab belong to

a)

cnidaria

b)

molluscs

c)

arthropoda

d)

sponges

24.

Sponges "eat" by moving water through the small pores and out the larger pore at the top while the "food" is transported by collar cells. This is an example of what feeding strategy?

a)

carnivore

b)

filter-feeding

c)

suspension feeding

d)

omnivore

25.

An organism that lives attached to a surface or the bottom of the ocean is __________.

a)

motile

b)

sessile

c)

planktonic

d)

hydrophilic

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