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Biology 26

Across
Phylum jellyfish belong to
Process in which animals get rid of waste
Type of Cnidarian found in tide pools that looks somewhat like a flower
Organism without a backbone
These make up a sponge's "skeleton"
Phylum sponges belong to
Concentration of sense organs and nerve cells at the anterior end
Taking in of oxygen and giving off carbon dioxide
These build reefs
Stinging cells
Allow sponges to survive difficult conditions
Type of "skeleton" a Cnidarian has
Poison filled structure
Down
Loosely organized network of nerves (2 words)
Animals don't have these (2 words)
Type of "feeders" sponges are
The type of symmetry a starfish has
Organisms that get their energy from other organisms are __
Specialized sponge cells that use flagella to move water
Stage of Cnidarian that is stationary
Organism with a backbone
The type of symmetry humans have
Stage of Cnidarian that moves freely