Simple Animals: Exploring Sponges and Cnidarians

The video tutorial introduces sponges and Cnidaria, two groups of invertebrates. Sponges, classified under Porifera, are simple organisms with porous bodies. Cnidaria, including sea anemones, jellyfish, and corals, are more complex with radial symmetry and specialized tissues. They possess stinging cells for capturing prey and have tentacles surrounding their mouths. The video highlights the differences between these two groups and their unique adaptations for survival in aquatic environments.

What specialized cells do many Cnidaria have, and what is their function?

Explain how Cnidaria capture and digest their prey.