Worms
Mollusks
Symmetry
Shells and Skeletons
Other Invertebrates
100
Looks like a smooth, thin tube
What is a roundworm?
100
A gastropod with 1 external shell
What is a snail?
100
Many imaginary lines can be drawn
What is radial symmetry?
100
A hard, outer covering
What is an exoskeleton?
100
An invertebrate with an internal skeleton and fluid-filled tubes
What is an echinoderm?
200
Made of linked sections
What is a segmented worm?
200
A bivalve with 2 external shells
What is a clam?
200
Only one line of symmetry can be drawn
What is bilateral symmetry?
200
An internal skeleton
What is an endoskeleton?
200
Invertebrates with stinging cells and a central body cavity
What is a cnidarian?
300
The three major groups of worms
What are flatworms, roundworms, and segmented worms?
300
A cephalopod with 1 internal skeleton
What is a squid?
300
Has no symmertry
What is asymmetrical?
300
Gastropods have this kind of shell
What is an external shell?
300
Invertebrates without tissues or organs
What is a sponge?
400
Flat, soft, eye spots on their head
What is a flatworm?
400
Use their foot for crawling
What is a snail?
400
Most animals in the ocean have it
What is radial symmetry?
400
Bivalves have this many external shells
What is 2 shells?
400
Jellyfish and corals are...
What are cnidarians?
500
Things all worms have
What are tissues, organs, and organ systems?
500
Use their foot for digging
What is a clam?
500
Larger and more complex animals have it
What is bilateral symmertry?
500
Cephalopod has this kind of skeleton
What is internal?
500
Have hard outer covering, segmented bodies, and pairs of jointed appendages
What is an arthropod?
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