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Invertebrates

Across
What type of symmetry do Annelids have?
What is the part of the water vascular system that allows water to enter?
What do you call the small bristles of hair that segmented worms use to help them move?
The _____ _____ system is a series of tubes in an Echinoderm that helps them move and transport nutrients.
What is the lowest level of the 7 levels of classification?
What do you call an animal that lives in or on another animal and steals their resources?
What are the small holes where water enters a sponge?
Down
The ________ stage is the stage where sponges grow into adults and don't move.
What do you call an animal that doesn't have a backbone?
What structure do Cnidarians have that help them catch their prey?
What type of symmetry do Echinoderms have?
What do Echinoderms use to help them move?
What is the muscle in the water vascular system that squeezes water into the tube feet.
Which Cnidarians are dying because the sea water is getting to hot for them?