GENERAL FEATURES
SEA STARS
random
SEA URCHINS
POTPOURI
100
What type of symmetry is displayed by adult echinoderms?
What is radial symmetry
100

Typically how many arms does a sea star have?

What is 5

100

can we eat echinoderms

yes

100

sea urchins have no arms true or false

true

100

which echinoderm is a filter feeder

What is the sea cucumber.

200
Name one echinoderm that is not marine
What is NONE (they are all marine!)
200

Water is taken into a sea star through its ____________.

round plate or opening eartube feet

200

what colours can sea cucumbers be

red yellow green

200
What does a sea urchin eat?
What is algae, seaweed
200

soft flexible and muscular with tough skin

What is the sea cucumber.

300

What are thefunctions of an echinoderms feet

act like sticky suction cups

to move and capture food

300
The water vascular system ends in what structure?
What are the tube feet
300
The fused ossicles that make the shell of a sand dollar or sea biscuit are called its ____________.
What is test.
300
What sea urchin structure is used for protection, movement, and trapping food particles?
What are spines.
300
What is the most mobile echinoderm?
What is the brittle star.
400

Describe 2 functions of echinoderm tube feet.

What is movement, and feeding

400

what do sea stars eat

clams

400

do sea urchins have tube feet

yes between the spines

400

what covers a centre shellin sea urchin

spines

400

what does echinoderm mean

spiny skinned

500

The skeleton of echinoderms is an......

endoskeleton

500

how do sea stars feed

forces stomach through its mouth, digestive chemicals break the clam down and sea star sucks it in

500

how are sea stars different from brittle stars

brittle stars have more jonits and are more flexible

500

how many teeth like sructures do sea urchins have 

5

500

fluid filled tubes in echinoderms

water vascular system