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Marine Bio B Exam Review - Mollusca/Porifera

Total questions: 79

Worksheet time: 41mins

Name
Class
Date
1.

What type of symmetry do molluscs exhibit?

a)

Bilateral symmetry

b)

Asymmetry

c)

Radial symmetry

d)

Spherical symmetry

2.

The shells of molluscs are composed of...

a)

Silica

b)

Cellulose

c)

Calcium carbonate

d)

Silica carbonate

3.

The class of molluscs that are said to be "head-footed" are...

a)

Gastropods

b)

Cephalopods

c)

Bivalves

d)

Braineopods

4.

Bivalves use their gills to...

a)

Breathe ONLY

b)

Filter food ONLY

c)

Breathe AND filter food

d)

Bivalves don't have gills

5.

Nudibranchs are also known as...

a)

Sea snails

b)

Sea slugs

c)

Chitons

d)

Shipworms

6.

Cephalopods have a single large brain; other molluscs have several "local brains" called...

a)

Ganglia

b)

Mantles

c)

Radulas

d)

Nerve nets

7.

The only cephalopod that doesn't have any kind of shell at all is the...

a)

Nautilus

b)

Octopus

c)

Squid

d)

Cuttlefish

8.

Which bivalve makes the types of pearls that are used for jewelry?

a)

Clams

b)

Oysters

c)

Mussels

d)

Scallops

9.

The structure unique to molluscs is a ribbon-like band of teeth called a...

a)

Radula

b)

Foot

c)

Mantle

d)

Ganglion

10.

The only cephalopod that has an external shell is the...

a)

Nautilus

b)

Octopus

c)

Squid

d)

Cuttlefish

11.

Which group of molluscs does NOT have a radula?

a)

Gastropods

b)

Cephalopods

c)

Bivalves

d)

All molluscs have a radula

12.

"Mollusca" is a....

a)

Domain

b)

Kingdom

c)

Phylum

d)

Class

13.

Which of the following organisms is best adapted for swimming?

a)

Squid

b)

Octopus

c)

Cuttlefish

d)

Nautilus

14.

What are the three main groups of Mollusks?

a)

Gastropods

b)

Cephalopods

c)

Annelids

d)

Myriapods

e)

Bivalves

15.

To which group of mollusks does this squid belong?

a)

cephalopod

b)

bivalve

c)

gastropod

16.

Which is the group of mollusks that has tentacles with suckers?

a)

Cephalopods

b)

Bivalves

c)

Gastropods

d)

Myriapods

17.

To which group of mollusks this clam belong?

a)

Gastropods

b)

Cephalopods

c)

Bivalves

d)

Arthropods

18.

Which is the group of mollusks that has the shell divided into two valves?

a)

Gastropods

b)

Cephalopods

c)

Bivalves

d)

Porifera

19.

To which group of mollusks this marine snail belong?

a)

Gastropods

b)

Cephalopods

c)

Bivalves

20.

The vestigial shell of a squid is called the

a)

siphon

b)

ink sac

c)

pen

d)

mantle

21.

A squid has multiple _______, but only 2 ______.

a)

arms, tentacles

b)

tentacles, arms

22.

The organism in the photo is a

a)

bivalve

b)

gastropod

c)

cephaopod

d)

chitin

23.

When all else fails, some mollusks use this to confuse their prey and escape

a)

siphon

b)

ink sac

c)

pen

d)

chitin

24.

A squid captures its prey first using its

a)

long suction cupped tentacles

b)

suction cupped arms

c)

beak

d)

Ink trail

25.

Squids move by

a)

walking/creeping on their tentacles

b)

shortening and lengthening their tentacles

c)

jet populsion

d)

fins

26.

Chromatophores are cells that cannot change color

a)

True

b)

False

27.

The Class Bivalvia Consists of

a)

Scallops, Clams, Oysters and mussels

b)

Polychaetes, Earthworms, Peanut worms and Turbellarians

c)

Starfish, Sea Stars, Sea lilies and Ophiuroids

d)

Crabs, Shrimp and Sea Spiders

28.

Cuttlefish have a -

a)

Eight arms no tentacles, globular, sac like body, vestigial shell. Octopus vulgaris.

b)

calcified, internal, chambered, straight, seprate shell or it may be reduced or lost

29.

A Radula is

a)

an organ of defense

b)

an organ for locomotion

c)

an organ to acquire food

d)

a support structure for the mouth

30.

The hemal (circulatory) system of a mollusc is made up of

a)

consists of tracheal tubes and a heart that pumps hemocoel

b)

a heart, a dorsal aorta, blood vessels, blood and a hemocoel.

31.

Polyplacophoran means a bearer of _____________ plates

a)

few

b)

many

32.

This is the outer fold of skin on molluscs, and is responsible for excreting the substance that forms the mollusc's shell.

a)

Radula

b)

Mantle

c)

Foot

d)

Ctenidia

e)

Cockle

33.

How do bivalves eat?

a)

Filter feeders

b)

Radula

c)

Tentacles

34.

What class of molluscs does the nautilus belong to?

a)

Bivalvia

b)

Gastropoda

c)

Cephalopoda

d)

Cnidaria

35.
Which number represents the gill?
a)
10
b)
12
c)
9
d)
16
36.
Which number represents the tentacle?
a)
1
b)
2
c)
4
d)
7
37.
Which number represents the siphon/funnel?
a)
1
b)
2
c)
4
d)
5
38.
Which number represents the gill heart?
a)
17
b)
11
c)
8
d)
18
39.

Squids are examples of

a)

vertebrates (animals with a backbone).

b)

invertebrates (animals without a backbone).

40.

Other organisms that are in the same Phylum Mollusca as squid are (choose all that apply)

a)

Roaches

b)

Clams

c)

Snails

d)

Oysters

41.

Squid belong to the Class ________ along with the octopus and chambered nautilus.

a)

Cephalopoda

b)

Crustacea

c)

Insecta

d)

Vertebrata

42.

The large majority of mollusks today are shaped like snails. But, the protective shells they evolved have come at a cost. Because of their weight, snails sacrificed ________ for safety.

a)

comfort

b)

speed

c)

protection

43.

What is the soft body that covers the body of a mollusk called?

a)

foot

b)

mantle

c)

siphon

d)

ink sac

44.

How many arms and tentacles does the squid have?

a)

8 arms, 2 tentacles

b)

10 arms, 2 tentacles

c)

2 arms, 8 tentacles

d)

5 arms and 5 tentacles

45.

True or False. Squids have very large eyes similar in structure to human eyes.

a)

True

b)

False

46.

What do squids use to breathe?

a)

lungs

b)

gills

c)

air sacs

d)

three-chambered heart

47.

Choose the true statement about squids.

a)

Squids are fast predators.

b)

Squids are herbivores (plant-eaters).

c)

Squids breathe using lungs.

d)

Squids have no defense mechanisms to hide from predators.

48.

What structure do squids have to help them crush their food before it travels through the esophagus to the stomach?

a)

teeth

b)

fangs

c)

beak

d)

scraping tongue

49.

Choose all the safety equipment you will wear for our dissection.

a)

goggles

b)

gloves

c)

lab apron

d)

HAZMAT suit

50.

In order to see the internal anatomy, you will carefully cut the _____ with dissecting scissors and pin it open like this.

a)

tentacle

b)

mantle

c)

siphon

d)

beak

51.

The internal shell of the squid is called the

a)

pen.

b)

pencil.

c)

bivalve.

d)

siphon.

52.

14

a)

Anterior Adductor Muscle

b)

Gills

c)

Intestine

d)

Mantle

e)

Mouth

53.

8

a)

Gills

b)

Intestine

c)

Mantle

d)

Mouth

e)

Pericardial Area (heart)

54.

9

a)

Intestine

b)

Mantle

c)

Mouth

d)

Pericardial Area (heart)

e)

Siphons

55.

16

a)

Mantle

b)

Mouth

c)

Pericardial Area (heart)

d)

Siphons

e)

Stomach

56.

13

a)

Mouth

b)

Pericardial Area (heart)

c)

Siphons

d)

Stomach

e)

Umbo

57.

2

a)

Siphons

b)

Intestine

c)

Mantle

d)

Mouth

e)

Pericardial Area (heart)

58.

15

a)

Stomach

b)

Mantle

c)

Mouth

d)

Pericardial Area (heart)

e)

Siphons

59.

5

a)

Umbo

b)

Mouth

c)

Pericardial Area (heart)

d)

Siphons

e)

Stomach

60.
What is the translation of the Phylum Porifera?
a)
Stinging cells
b)
Filter feeders
c)
Soft bodied
d)
Pore bearing
61.
Hard fibers that provide a sponge structural support
a)
Spicules
b)
Bones
c)
Cartilage
d)
Ossicles
62.
Attached to one spot their entire adult life is referred to as
a)
Stuck
b)
Medusa
c)
Bipinnaria
d)
Sessile
63.
Sponges are:
a)
Unicellular & prokaryotic
b)
Multicellular & eukaryotic
c)
Unicellular & eukaryotic
d)
Multicellular & prokaryotic
64.
Sponges have this type of symmetry
a)
Unilateral
b)
Bilateral
c)
Radial
d)
Asymmetric
65.
Some Cnidarians can reproduce asexually by:
a)
Expelling gametes
b)
Internal fertilization
c)
External fertiliztion
d)
Budding
66.
The elastic fibrous protein found in sponges is called .....
a)
mesohyl
b)
spicules
c)
spongin
d)
tissue
67.
The spongin and spicules make up what in sponges?
a)
digestive tract
b)
skin
c)
stomach
d)
skeleton
68.
large opening at the top of a sponge where water exits.
a)
ostia
b)
osculum
c)
orifice
d)
opening
69.

How do sponges obtain food?

a)

filter it from the water

b)

grasp it with tentacles

c)

pry it apart with tube feet

d)

put it in their mouth with jointed legs

70.
What is true about sponges?
a)
They have organs
b)
They have bilateral symmetry
c)
They have a true coelom
d)
They are animals
71.

The small "hairs" inside the sponge that move water are called...

a)

Flagella

b)

Collar cells

c)

Osculum

d)

Pores

72.

The cells inside the sponge that have flagella (and absorb food) are called...

a)

Collar cells

b)

Flagella

c)

Osculum

d)

Pores

73.

Which one is NOT true about sponges?

a)

They are multicellular

b)

They are autotrophs

c)

They are eukaryotes

d)

They are the simplest animals on Earth

74.
Asexual reproduction in sponges can produce capsules that are resistant and can survive harsh conditions.  These cells are called
a)
choanocytes
b)
gemmules
c)
spongocoel
d)
gametes
75.

True/False: Sponges reproduce by both sexual and asexual reproduction.

a)

True

b)

False

76.

Label A points to...

a)

collar cells

b)

incurrent pores

c)

spicules

d)

epithelial cells

77.

Label B points to...

a)

collar cells

b)

incurrent pores

c)

spicules

d)

epithelial cells

78.

Label C points to...

a)

collar cells

b)

incurrent pore

c)

spicules

d)

epithelial cells

79.

Label D points to...

a)

collar cells

b)

osculum

c)

spicules

d)

epithelial cells