Mollusks & Echinoderms
Echinoderms means?
Spiny Skin
How many legs do insects have?
6
What kind of worm is flat and has no body cavity?
Flatworm
What do sponges have instead of bones?
Spicules
2 Type of Echinoderms?
Starfish, Sea Urchins, Sea Cucumbers, Sand Dollars,
Brittle Stars
What kind of skeleton do arthropods have?
Exoskeleton
What worm has segments and real organs?
Segmented worm
Do sponges have tissues?
No
What kind of symmetry do starfish have?
Radial
What group has jellyfish and sea anemones?
Cnidarians
What worm has a one way digestive system?
Round worm
What do sponges use to pump water?
Choanocytes
What do echinoderms use to move?
Tube feet
What kind of body symmetry do arthropods have?
Bilateral
What worm has both a crop and a gizzard?
Earth worm
Sponges don’t move. What is that called?
Sessile
What’s the system in starfish that moves water through their body?
Water vascular system
What stinging cells do cnidarians have?
Nematocysts
Which worm can regrow parts if cut?
Planaria
What’s the hole where water leaves a sponge?
Oscullum