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The main part of the Nervous system for Phylum Porifera is
B. Doesn't have one
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What part of Phylum Platyhelminthes acts as a brain?
D. The ganglion
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Out of these groups, which group has a complex nervous system?
A. Phylum Arthropoda, Class Arachnida
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Of the following, which group does not have a complex nervous system?
B. Phylum Arthropoda, class insecta
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Of the following, which group does not have a ganglion?
A. Phylum Athropoda, Class Crustacea
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Which group has an Ocellus?
B. Phylum Cnidaria
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Between which group is there a leap?
B. Phylum Chordata, Class Chrondrichthyes - Phylum Chordata, Class Osteichythyes
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Which group falls?
C. Phylum Mollusca -- Phylum Arthropoda, Class Crustacea
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What part of the internal skin on a sponge creates water currents?
D. Choanocytes
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Flatworms absorb oxygen through their
C. skin
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Produced by flatworms' skin,this is the most essential part of a flatworm's integumentary system - Cuticle (bodily covering)
C. Cuticle (bodily covering)
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Clams, snails, and oysters are protected by a hard shell made mostly of
A. Calcium Carbonate
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Spider,s like lobsters and shrimp, have a hard protective shell on their bodies that acts as skin called an
A. Exoskeleton
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Hard shells found on lobster crabs, and spiders are made of
C. Chitin
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Beetles, bees, and flies all have an integumentary system that
C. Protects internal organs
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The outer layer of skin on a starfish is made up of
A. Bumbs and Spines
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