Flatworms Quiz: Test Your Knowledge
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Questions and Answers

The word 'platy' in Platyhelminthes means

flat

Flatworms are also known as

Platyhelminthes

The digestive cavity of flatworms has

only one opening for both ingestion and egestion

The classification of Platyhelminthes into Turbellaria, Cestoda, Trematoda, and Monogenea is now

<p>deprecated</p> Signup and view all the answers

Platyhelminthes are

<p>acoelomates</p> Signup and view all the answers

What is the meaning of 'Platy' in the term Platyhelminthes?

<p>Flat</p> Signup and view all the answers

What type of animals are Turbellaria?

<p>Non-parasitic</p> Signup and view all the answers

What is the primary restriction on the shape of flatworms?

<p>Acoelomate nature</p> Signup and view all the answers

In which environments do free-living flatworms mostly live?

<p>Shaded, humid terrestrial environments</p> Signup and view all the answers

What is the primary reason for the food of flatworms not being processed continuously?

<p>Absence of specialized circulatory organs</p> Signup and view all the answers

Study Notes

Platyhelminthes Overview

  • The term 'platy' refers to the flat shape of these organisms, derived from the Greek word meaning "flat."
  • Commonly known as flatworms, Platyhelminthes exhibit a simple body structure with bilateral symmetry.

Classifications and Types

  • Platyhelminthes are classified into four main groups: Turbellaria, Cestoda, Trematoda, and Monogenea.
  • This classification reflects their evolutionary relationships and anatomical features.

Body Structure and Habitat

  • Flatworms possess a digestive cavity, which is not a complete system; it typically consists of a mouth but lacks an anus.
  • The primary limitation on the shape of flatworms is the need for diffusion of gases and nutrients across their body surface, necessitating a flat form.
  • Free-living flatworms primarily inhabit aquatic environments, thriving in both freshwater and marine settings.

Feeding and Digestion

  • Flatworms do not process food continuously due to their simple gastrointestinal structure, which leads to intermittent feeding.

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Description

Take this quiz to test your knowledge about flatworms, also known as Platyhelminthes. Learn about their characteristics, classification, and unique traits.

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