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Mollusk, Sponge and Plankton Exam

Total questions: 50

Worksheet time: 2hrs 23mins

Name
Class
Date
1.

What are the three classes of Mollusks?

a)

Cephalopod

b)

Gastropod

c)

Mollusca

d)

Bivalve

2.

Which one of these Mollusks is a Gastropod?

a)

Snail

b)

Squid

c)

Clam

d)

Octopus

3.

What are the two main ways plankton get their food?

a)

Autotrophic

b)

Automatic

c)

Heterotrophic

d)

Endothermic

4.

How many ARMS does a SQUID have?

a)

1

b)

10

c)

6

d)

8

5.

Name the two types of Plankton

a)

Zooplankton

b)

RIngplankton

c)

Archplankton

d)

Phytoplankton

6.

What is the name of a Sea Slug's special "tongue?"

a)

Tubicle

b)

Operculum

c)

Radula

d)

Nepherida

7.

12. What is the name of the toxic plankton that can create massive problems in the ocean?

a)

Protista

b)

Red Tide

c)

Ribosoma

d)

Staph Infectious

8.

How many hearts does a squid have?

a)

1

b)

2

c)

3

d)

4

9.

Which part of the Mollusk body is the tissue covering the body and secretes the shell?

a)

Visceral Mass

b)

Trocophore

c)

Foot

d)

Mantle

10.

Which class of Mollusks include clams, oysters, and mussels?

a)

Cephalopd

b)

Gastropod

c)

Bivalve

11.

Which part of the Mollusk body contains organs?

a)

Mantle

b)

Beak

c)

Visceral Mass

d)

Siphon

12.

Sponges cannot move, they are____________

a)

Mobile

b)

Sessile

c)

Motile

d)

Hydrophobic

13.

The two fastest swimming Cephalopods are?

a)

Octopus

b)

Squid

c)

Nautilus

d)

Cuttlefish

14.

Which plankton spends its whole life as plankton?

a)

Holoplankton

b)

Meroplankton

c)

Autoplankton

d)

Hydroplankton

15.

This type of plankton spends its juvenile stage as plankton, but grows up to become a free swimming organism:

a)

Holoplankton

b)

Meroplankton

c)

Autotrophic

d)

Benthic

16.

This type of plankton is known as "Plant-like" plankton

a)

Green Plankton

b)

Zooplankton

c)

Phytoplankton

d)

Cnidarian

17.

This is the central exit point for water that is exiting out of the central cavity of a Sponge:

a)

Operculum

b)

Osculum

c)

Collar Cell

d)

Choanocyte

18.

Name this Cephalopod

a)

Octopus

b)

Cuttlefish

c)

Nautilus

d)

Squid

19.

Which class of Mollusk have many species that are sessile

a)

Gastropods

b)

Bi-valves

c)

Cephalopods

d)

Cnidarians

20.

What is the method of reproduction by sponges?

a)

Budding

b)

Sexual

c)

External

d)

None of the above

21.

Phylum "Porifera" translates to?

a)

Pore-bearing

b)

Head-food

c)

Two-Valve

d)

Stomach-Foot

22.

What kind competition does Sponges have in the Ocean?

a)

Space

b)

Food

c)

Mates

d)

Predators

23.

In what type of environment do MOST mollusks live?

a)

Soil

b)

Marine

c)

Freshwater

d)

Terrestrial

24.

Which part of the Mollusk body is specialized for burrowing, feeding, and movement?

a)

trochophores

b)

visceral mass

c)

mantle

d)

foot

25.

What type of symmetry do MOST mollusks have?

a)

Bilateral

b)

Radial

c)

Circular

d)

Asymmetrical

26.

What type of symmetry do sponges have?

a)

Bilateral

b)

Raidal

c)

Circular

d)

Asymmetrical

27.

Which part of the Mollusk body is the tissue covering the body and secretes the shell?

a)

Mantle

b)

Foot

c)

Trochophore

d)

Visceral Mass

28.

Which class of Mollusks include organisms that have camera-like eyes similar to humans?

a)

Gastropod

b)

Bivalve

c)

Cephalopod

d)

Plankton

29.

Which class of Mollusks is the only class with some terrestrial species?

a)

Gastropod

b)

Bivalve

c)

Cephalopod

d)

Plankton

30.

Which of the following is the correct description of respiration in Mollusks?

a)

They use diffusion through their moist skin and gills in marine environments

b)

They use nephridia to exchange oxygen and carbon dioxide

c)

They use primitive lungs in marine environments and gills on land.

d)

They use gills in marine environments and primitive lungs on land.

31.

What type of mollusk is this?

a)

Bivalve

b)

Gastropod

c)

Cephalopod

d)

Segmented Worm

32.

Which group of Mollusks does the picture belong to?

a)

Gastropod

b)

Bivalve

c)

Cephalopod

33.

What Mollusk group does the picture belong to?

a)

Bivalve

b)

Gastropod

c)

Cephalopod

34.

What is the oldest part of a bivalve shell?

a)

Umbo

b)

Hinge

c)

Adductor

d)

Syphon

35.

#8 points to what feature?

a)

Siphon

b)

Eggs

c)

Umbo

d)

Gills

36.

What muscle opens and closes the clam?

a)

Labial Palp

b)

Incurrent

c)

Adductor

d)

Umbo

37.

Gastropod means what in Latin?

a)

Head

b)

Stomach

c)

Foot

d)

Two

e)

Valve

38.

Cephalopod means what in Latin?

a)

Head

b)

Stomach

c)

Foot

d)

Two

e)

Valve

39.

How do nautiluses maintain their buoyancy?

a)

Their liver is filled with fat that helps keep them from sinking

b)

Colonies of algae in their shell produces gases that make the nautilus more buoyant

c)

Their siphons jet upwards and downwards constantly

d)

They fill chambers within their shell with gas from their blood stream.

40.

___________ are tiny hard particles that give a sponge support and can provide protection when they stick out of a sponge.

a)

Spongin

b)

Buds

c)

Ostia

d)

Spicules

41.

Sponges have many pores or ______ to circulate water.

a)

Osculum

b)

Ostia

c)

Cnideria

d)

Spicules

42.

cells have sticky, funnel-shaped collar to collect food particles and a flagellum that creates a water current

a)

Amoebocyte

b)

Pinacocyte

c)

Ostiocyte

d)

Choanocyte

43.

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

a)

Collar Cells

b)

Osculum

c)

Flagella

d)

Pores

44.

In Sponges, sperm is created from a modified _______________

a)

Collar Cell

b)

Amoebocyte

c)

Ostia

d)

Spicule

45.

Diatoms are

a)

Mollusk

b)

Phytoplankton

c)

Zooplankton

46.

Phytoplankton are associated with the photic zone because they rely on the sun for the process of:

a)

Respiration

b)

Chemosynthesis

c)

Photosynethsis

d)

Hetertrophs

47.

Which of these 4 gastropods is a predator of fish that uses a poison barb to paralyze them?

a)

Conch Snail

b)

Cone Snail

c)

Oyster Drill

d)

Periwinkle

48.

Which number represents the tentacle?

a)

1

b)

2

c)

4

d)

7

49.

Which number represents the siphon/funnel?

a)

1

b)

2

c)

4

d)

5

50.

Which of these cephalopods rarely swims and mostly crawls?

a)

Squid

b)

Octopus

c)

Cuttlefish

d)

Nautilus

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