Phylum Echinodermata Flashcards
1
Q
What does Echinodermata mean?
A
Spiny skin
2
Q
What are five characteristics of Echinodermata?
A
1) Radial symmetry
2) Move on tube feet
3) All live in the ocean
4) Most regenerate body parts - survival strategy
5) No head or brain
3
Q
What are five examples of Echinodermata?
A
1) Sea stars/starfish (external digestion)
2) Brittle stars
3) Sea urchins
4) Sand dollars
5) Sea cucumber
4
Q
Explain external digestion.
A
An animal who can perform external digestion moves their stomach so that it is hanging out of their mouth. They eat and digest food with their stomach like that, then put it back in their mouth.
