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Teaching Invertebrate evolution

Invertebrate evolution

Invertebrates evolved several important traits before vertebrates even appeared. These traits are now found in just about all animals.

CK-12 (High School)

ESSENTIAL QUESTION:

Before vertebrates evolved from invertebrates, what traits evolved amongst invertebrates?
STANDARDS:
RST.4 - Key Terms, RST.5 - Text Structure

DEPTH OF KNOWLEDGE (DOK) LEVELS:

2,3
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