Understanding Mollusks

This video tutorial from MoomooMath and Science introduces mollusks, a type of invertebrate, and focuses on three major types: gastropods, bivalves, and cephalopods. It describes their common characteristics, such as having a soft body, bilateral symmetry, and a radula. The video then delves into each type, providing examples and unique features. Gastropods, like snails and slugs, have their stomach above their foot. Bivalves, such as clams and oysters, have two shells and are filter feeders. Cephalopods, including octopuses and squids, have a prominent head, tentacles, and can change colors. The video concludes with a call to subscribe and share.

What is a common feature of most mollusks?

• A segmented body

• A pair of wings

• A hard exoskeleton

• A toothed tongue called a radula

Where is the stomach located in gastropods?

• Below their foot

• Next to their tentacles

• Above their foot

• Inside their shell

Which of the following is NOT an example of a gastropod?

• Clam

• Snail

• Slug

• None of the above

What is a distinctive feature of bivalves?

• They have two shells

• They can change colors

• They have a prominent head

• They have a toothed tongue

Which of the following is a bivalve?

• Octopus

• Squid

• Cuttlefish

• Mussel

What is unique about the blood of cephalopods?

• It is colorless

• It is red

• It is blue

• It is green

Which of the following is NOT a cephalopod?

• Oyster

• Cuttlefish

• Squid

• Octopus