Acadia National Park - Meet a Sea Star

The video provides an engaging overview of sea stars, highlighting their unique characteristics, anatomy, and habitat. It explains their movement, vision, and feeding habits, including their ability to regenerate lost limbs. The video also touches on their predators and how they protect themselves. Through vivid descriptions and examples, viewers learn about the fascinating life of sea stars and their ecological role.

What is a common misconception about sea stars?

• They have a backbone.

• They have ten arms.

• They live in freshwater.

• They are a type of fish.

What is the relationship between sea stars and sea urchins?

• They are both echinoderms.

• They are both freshwater species.

• They are both herbivores.

• They are both vertebrates.

How do sea stars detect their surroundings?

• Using eye spots on each arm.

• Through their sense of smell.

• By feeling vibrations in the water.

• With their eyes on their head.

What is the function of a sea star's madreporite?

• It is used for reproduction.

• It absorbs seawater for movement.

• It helps them breathe.

• It aids in digestion.

What type of diet do sea stars have?

• Herbivorous, eating seaweed.

• Omnivorous, eating plants and animals.

• Carnivorous, eating clams and mussels.

• Detritivorous, eating decomposed matter.

How do sea stars consume their prey?

• By swallowing them whole.

• By trapping them in their arms.

• By using their teeth to chew.

• By secreting enzymes to dissolve them.

What unique ability do some sea stars have regarding regeneration?

• They can regrow lost eyes.

• They can regenerate from a severed limb.

• They can regrow their entire body in a day.

• They can regenerate their internal organs.