Flatworm Structure and Function

The video tutorial covers the feeding process of sponges, characteristics of Cnidarians, and introduces worms, focusing on flatworms. Students engage in a hands-on activity to understand flatworm anatomy, learning about their triploblastic nature and the layers: endoderm, mesoderm, and ectoderm. The session includes interactive class participation and discussions on the complexity and diversity of flatworms.

How do sponges obtain their food?

• Through photosynthesis

• By absorbing nutrients from soil

• By capturing prey with tentacles

• By filtering water through pores

What is located at the top of a polyp in Cnidarians?

• A shell

• Tentacles

• A fin

• A mouth

Which of the following is an example of a flatworm?

• Planarian

• Earthworm

• Leech

• Roundworm

What does the term 'triploblastic' refer to in flatworms?

• Having two cell layers

• Having no cell layers

• Having three cell layers

• Having a single cell layer

What color represents the endoderm in the worm model activity?

• Green

• Yellow

• Red

• Blue

What is the outermost layer of a flatworm called?

• Endoderm

• Exoderm

• Mesoderm

• Ectoderm

What is the middle cell layer in triploblastic organisms called?

• Endoderm

• Exoderm

• Mesoderm

• Ectoderm

What is the function of the paper clip in the worm model activity?

• To hold the worm together

• To measure the worm's length

• To create a digestive tract

• To color the worm

Which phylum do flatworms belong to?

• Platyhelminthes

• Nematoda

• Mollusca

• Annelida

What is the purpose of flattening the worm models?

• To prepare them for painting

• To make them easier to store

• To represent the flat nature of flatworms

• To create a more realistic model