Marine Worms and Mollusks

Marine Worms and Mollusks

We learned about more marine invertebrates, or animals without backbones. The two we learned about are worms and mollusks. For this assignment, we picked one of each and wrote about them

Tapeworm

Phylum: Platyhelminthes

Scientific Name: Cestode

Common Name: Tapeworm

Three Facts:

• Tapeworms can get up to 80 ft long and can live in its host for up to 30 years.

• Tapeworms are parasitic.

• Tapeworms usually live in whales, but can live in humans if consumed through meats, seafood, and water.

Structure of a Tapeworm:

• Brain

• Eyes

• Sensory lobe

• Phanynx

• Ventrolateral Nerve

• Intestine

• Mouth

Clams

Phylum: Mollusca

Scientific Name: Mercenaria mercenaria

Common Name: Clams

Three Facts:

• When there is an irritation inside the clam, the mantle will shed its lining and eventually make a pearl.

• The umbo is the oldest part of a clam.

• Clams have two valves.

Structure of a Clam:

• Umbo

• Growth rings

• Exhalant/Inhalant Siphon

• Gills

• Palps

• Foot

• Mouth

• Mantle Adductor muscle

• Shell