9.2 Marine Worms Flashcard

Front

What is the main topic of the section titled 'Marine Animals Without a Backbone'?

Back

Marine Worms

Front

What is the role of setae in Nereis?

Back

Locomotion

Front

Worms in Phylum _________ grow by adding more segments or rings onto their body.

Back

Annelida

Front

What is the term for the body cavity found in annelids?

Back

Coelom

Front

Which of the following is a characteristic of flatworms?

Back

Flattened body

Front

Define the term 'coelom'.

Back

A coelom is a fluid-filled body cavity that is completely surrounded by mesoderm tissue.

Front

What are the three main phyla of worms?

Back

Annelida, Nematoda, Platyhelminthes.

Front

What is a key characteristic of Nematodes?

Back

Nematodes, or roundworms, have a cylindrical body shape and are unsegmented.

Front

Describe the body structure of annelids.

Back

Annelids have a segmented body structure, with each segment containing similar organs.

Front

What is the significance of setae in annelids?

Back

Setae help annelids grip surfaces and aid in locomotion.