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- Multiple ChoicePlease save your changes before editing any questions.
What are TWO groups animals have been divided into?
vertebrates and mammals
invertebrates and vertebrates
invertebrates and arthropods
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What percentage of animals on Earth are invertebrates?
96%
99%
97%
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The largest group of invertebrates are ______
insects
arthropods
mammals
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What is one trait of a mollusk?
They have an exoskeleton.
They have soft bodies.
They have eight legs.
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Which is NOT a function of a mollusk's muscular foot?
crawling
digging
breathing
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What correctly explains the purpose of the mantle?
It allows the mollusk to feed.
It protects the soft body of the mollusk.
It helps the mollusk move.
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What do stinging cells contain?
poisonous nails
poisonous threads
poisonous bubbles
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What is the mouth of the hollow sac surrounded by?
tentacles
arms
needles