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Turbellaria Class: Free-Living Flatworms

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Turbellaria Class: Free-Living Flatworms

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Questions and Answers

What is the main function of rhabdites in turbellarians?

To aid in digestion
To form a protective mucous sheath around the body (correct)
To secrete enzymes that aid in digestion
To produce a chemical that attaches to a substrate

What is the middle layer of cells between the outer layer of circular muscle and the gastrodermis?

Mesodermal derived tissue
Gastrodermis
Parenchymal cells (correct)
Epidermis

What is the primary function of the gastrodermis in turbellarians?

To secrete enzymes that aid in digestion and absorb the end products of digestion (correct)
To produce a chemical that attaches to a substrate
To move by using cilia and muscular undulations
To form a protective mucous sheath around the body

What is the function of adhesive glands in turbellarians?

To produce a chemical that attaches part of the turbellarian to a substrate (A) Signup and view all the answers

What is the primary means of locomotion in turbellarians?

Using cilia and muscular undulations (A) Signup and view all the answers

What is the function of the mucus sheet laid down by turbellarians?

Aiding in adhesion and traction for cilia (C) Signup and view all the answers

What is the role of pharyngeal glands in turbellarians?

Secreting digestive enzymes (C) Signup and view all the answers

How do turbellarians exchange respiratory gases with their environment?

By diffusion through the body wall (B) Signup and view all the answers

What is the function of protonephridia in turbellarians?

Removing metabolic wastes (B) Signup and view all the answers

What is the function of the statocyst in turbellarians?

Functioning as a mechanoreceptor (C) Signup and view all the answers