Squid Anatomy

Squids are examples of

• vertebrates (animals with a backbone).

• invertebrates (animals without a backbone).

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

• Roaches

• Clams

• Snails

• Oysters

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

• Cephalopoda

• Crustacea

• Insecta

• Vertebrata

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

• foot

• mantle

• siphon

• ink sac

How many arms and tentacles does the squid have?

• 8 arms, 2 tentacles

• 10 arms, 2 tentacles

• 2 arms, 8 tentacles

• 5 arms and 5 tentacles

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

• True

• False

What do squids use to breathe?

• lungs

• gills

• air sacs

• three-chambered heart

Choose the true statement about squids.

• Squids are fast predators.

• Squids are herbivores (plant-eaters).

• Squids breathe using lungs.

• Squids have no defense mechanisms to hide from predators.

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

• teeth

• fangs

• beak

• scraping tongue

Choose all the safety equipment you should wear for squid dissection.

• goggles

• gloves

• lab apron

• face shield