Simple Animals: Understanding Echinoderms

The video introduces starfish as part of the Echinodermata group, highlighting their spiny skin and radial symmetry. It explains that echinoderms, including sea urchins, sea stars, sand dollars, and sea cucumbers, inhabit oceans. The anatomy of echinoderms, featuring an internal skeleton and tube-like feet connected to a water vascular system, is discussed, emphasizing their ability to move and obtain food.

What animal is identified in the video as a member of the Echinodermata group?

• Octopus

• Crab

• Starfish

• Jellyfish

Which of the following is NOT an example of an echinoderm?

• Sea urchin

• Sand dollar

• Sea cucumber

• Lobster

What type of symmetry do adult echinoderms possess?

• Bilateral symmetry

• Radial symmetry

• Spherical symmetry

• Asymmetry

What feature allows echinoderms to move and gather food?

• Wings

• Fins

• Tube-like feet

• Tentacles

Which system in echinoderms is associated with their movement?

• Respiratory system

• Water vascular system

• Digestive system

• Nervous system