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Unit 5 Marine Science Test

Total questions: 26

Worksheet time: 13mins

Name
Class
Date
1.

What does the word arthropod mean?

a)

jointed leg

b)

no spine

c)

jointed foot

d)

jointed hair

2.

An exoskeleton of the arthropod (Lobster) is made of

a)

chitin and calcium carbonate

b)

bone

c)

tissue

d)

skeleton

3.
What is molting?
a)
The process in which arthropods reproduce
b)
The process in which arthropods shed their outer covering and grow a larger one.
c)
The process in which larval forms develop into adult forms
d)
The process in which arthropods breathe
4.
Lobster, shrimp, and crabs are examples of what group of Arthropods?
a)

Chilopoda

b)

Diplopoda

c)

Crustaceans

d)

Arachnida

5.
What phylum are crustaceans a part of?
a)
Arachnids
b)
Arthropods
c)
Animals
d)
Invertebrates
6.
What Arthropod has the greatest biomass of any singles species on Earth.
a)
Insects
b)
Spiders
c)
Krill
d)
Crabs
7.
What two characteristics do all Arthropods have?
a)
two legs per body segment
b)
jointed legs and a cephalothorax
c)
three body segments and metamorphosis
d)
jointed legs and segmented bodies
8.
What does the phylum name "Echinodermata" mean?
a)

Smooth skin

b)

Shiny skin

c)

Spiny skin

d)

Special skin

9.
What type of body symmetry do echinoderms display?
a)

Bilateral

b)

Asymmetry

c)

Radial

d)

Concentric

10.
What type of skeleton do sea stars have?
a)

Internal skeleton

b)

External skeleton

c)

Exoskeleton

d)

No skeleton

11.
What is the main function of the water vascular system?
a)

Locomotion

b)

Feeding

c)

Reproduction

d)

All of the above

12.

Most mollusks have what type of body symmetry?

a)

Bilateral symmetry

b)

Asymmetry

c)

Radial symmetry

d)

Concentric symmetry

13.

In regards to their body structure, mollusks are considered to be...

a)

Monoblastic with only one germ layer

b)

Diploblastic with two germ layers

c)

Triploblastic with three germ layers

d)

Quadroblastic with four germ layers

14.

Which of the following is not a part of a mollusk’s 3-part body plan?

a)

Foot

b)

Radula

c)

Visceral Mass

d)

Head

15.

Which TYPE of mollusk is most intelligent?

a)

Bivalve

b)

Gastropod

c)

Cephalopod

16.

Which TYPE of mollusk has two shells?

a)

Bivalve

b)

Gastropod

c)

Cephalopod

17.

Which TYPE of mollusk has ONE or NO shell?

a)

Bivalve

b)

Gastropod

c)

Cephalopod

18.
Which class of Mollusks include squid, cuttlefish and octopus?
a)

Gastropods

b)

Bivalves

c)

Cephalopods

d)

Polyplacophora

19.

What TYPE of mollusk is this?

a)

Bivalve

b)

Gastropod

c)

Cephalopod

20.

What TYPE of mollusk is this?

a)

Bivalve

b)

Gastropod

c)

Cephalopod

21.

What TYPE of mollusk is this?

a)

Bivalve

b)

Gastropod

c)

Cephalopod

22.

How do Bivalves eat?

a)

Filter feeders

b)

Radula

c)

Tentacles

d)

Beak

23.
Which part of the Mollusc body contains organs?
a)

Foot

b)

Visceral Mass

c)

Trochophore

d)

Mantle

24.

The only class of mollusk to have a closed circulatory system includes the

a)

polychaete

b)

brachiopod

c)

snail

d)

oyster

e)

octopus

25.

Bivalves use what instead of parapodia, palps, and setae to convey food to their mouths?

a)

A)cilia

b)

B)parapodia

c)

C)palps

d)

D)setae

26.

What is the understood respiratory system in bivalves?

a)

They are thought to gills.

b)

heart

c)

gills and probably the surface exchange