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Invertebrates Quiz
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What percentage of all living and fossil animals are invertebrates?
90%
Facts about invertebrates:
Soft-bodied; lack internal skeleton for muscle attachment; some have a hard shell
What are known as the "filters of the ocean"?
Porifera
Do sponges have any kinds of bodily systems?
NO!
Cnidaria
coral, jellyfish, and anemones
Mollusca
squid and octopi
Anthropod
crab, shrimp, and barnacles
Echinodermata
sea stars, urchins
Jim Porter
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