Exploring the World of Worms and Mollusks

Monday 12/04/23
Homework Agenda

​Checkpoint 1
Cells Unit Cards

​1) Worms & Mollusks
2) CW: Google Forms
3) Rough Draft

Worms and Mollusks

Worms and Mollusks

• Worms: soft-bodied invertebrates that lack limbs and have long bodies

• Mollusks: invertebrates with soft bodies, often protected by a hard shell

• Types of Worms: earthworms, flatworms, roundworms, etc...

• Types of Mollusks: snails, clams, squids, octopuses, etc...

Multiple Choice

Which of the following is a type of mollusk?

• Earthworm

• Leech

• Snail

• Millipede

Worms Pg. 102, 105

• earthworm: burrows through the soil, swallows it and leaves behind enriched soil

• leech: parasitic worm that feeds on the blood of the host it has attached itself to

• ​tapeworm: parasitic worm that grows inside the intestines

• roundworm: parasitic worm that lives in the muscles, intestines, or lymph nodes of its host's blood or partially digested food

Multiple Choice

• Which parasitic worm lives in the muscles, intestines, or lymph nodes of its host's blood or partially digested food?

• Earthworm

• Leech

• Tapeworm

• Roundworm

Mollusks Pgs. 105-108

Gastropods
"Stomach foot"
Snail Slug
Cowrie Conch
Oysters Mussels
Clams Scallops

Cephalopods
"Head-foot"
Octopus
Nautilus
Cuttlefish
Squid

Multiple Choice

• Which word means "stomach foot"?

• Cephalopod

• Gastropod

• Cyclopod

• Tripod

Multiple Choice

• Which of the following is not a gastropod?

• Squid

• Snail

• Cowrie

• Oyster

Multiple Choice

• Which word means two shells?

• Univalve

• Bivalve

Gastropods: Stomach Foot Pg. 106

Univalves
"One Shell"
Snail
Cowrie
Conch

Bivalves
"Two Shell"
Mussel
Oyster
Scallop
Clam

Cephalopods: Head Foot Pg. 108

• octopus: 8 tentacles, no shell, ink

• squid: 10 tentacles, internal shell, ink

• cuttlefish: 10 tentacles, internal shell, ink

• nautilus: up to 94 tentacles, external shell, no ink

Multiple Choice

• Which statement is false?

• Squids have 10 tentacles and an internal shell.

• Nautilus have up to 94 tentacles and an external shell.

• An octopus has 8 tentacles and an internal shell.

• Cuttlefish have 10 tentacles and an internal shell.