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Printable 8th grade biology worksheet on heredity, genetics, evolution, and traits including alleles, sex-linked inheritance, and natural variation.
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Heredity, Genetics, and Evolution

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This printable biology worksheet for 8th graders covers heredity, genetics, and evolution across three lessons. Students answer true-or-false questions on heredity and genes, identify multiple alleles and codominance, define extinction and evolution, and explore variations in beak shape and plant characteristics. Useful for review, study guides, or unit assessments.

Subject:
Science
Topic:
Biology
Grade Level:
8th Grade
Updated May 2026

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