Mollusks are invertebrates that usually have a hard shell, a mantle, and a radula. Their glossy pearls, mother of pearl, and abalone shells are like pieces of jewelry. Some mollusks, such as squid and octopus, do not have shells.
CK-12 (Middle School)
What characteristics distinguish mollusks from other invertebrates?
RST.1 - Analysis & Evidence, RST.2 - Main Ideas
DEPTH OF KNOWLEDGE (DOK) LEVELS:
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