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Cephalopods

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

The largest and most dangerous of all 8,000 marine invertebrates.

a)

Cephalopods

b)

Squids

c)

Mollusks

d)

Octopuses

2.

Cuttlefish, squid and octopuses are all part of a highly developed class of organisms called

a)

Cephalopods

b)

Mollusks

c)

Cnidarians

d)

Crustaceans

3.

The giant squid is known to be the length of a

a)

school cafeteria

b)

school bus

c)

volkswagen

d)

pickup truck

4.

The name Cephalopod means "head foot"

a)

true

b)

false

5.

Squids are equipped with 8 ____ and 2 _____.

a)

arms, tentacles

b)

tentacles, arms

c)

arms, gills

d)

gills, arms

6.

Squid are capable of changing colors through a process called

a)

biolight

b)

biovibrancy

c)

bioluminescence

d)

bioillumination

7.

The firefly squid lights up when a chemical called _____ reacts with ______.

a)

luciferin, nitrogen

b)

luciferin, water

c)

luciferin, oxygen

d)

luciferin, sodium chloride

8.

Some octopuses use ______ in order to pretend to be other animals such as lion fish and pale fish.

a)

imitation

b)

mimicry

c)

acting skills

d)

shape shifting

9.

The only Cephalopod with a bony body structure that exists is the ______

a)

nautilus

b)

nautical clam

c)

lobser

d)

mollusk

10.

Deep sea Cephalopods are known to display this unique feature that is considered a phenomenon.

a)

gigantism

b)

polymorphism

c)

dwarfism

d)

megamorphism