https://www.khanacademy.org/science/grade-6-science-tx/x6eddf2e1c524bf5a:traits-and-the-environment/x6eddf2e1c524bf5a:trait-variation-and-environmental-change/a/trait-variation-and-environmental-change 2026-06-30T17:20:49.845080165Z Learn and try: Trait variation and environmental change Learn about advantageous and disadvantageous traits, and how trait variation within a population can affect survival as the environment changes. article https://www.khanacademy.org/science/grade-6-science-tx/x6eddf2e1c524bf5a:traits-and-the-environment/x6eddf2e1c524bf5a:trait-variation-and-environmental-change/e/understand-trait-variation-and-environmental-change 2026-06-30T17:20:49.845080165Z Understand: Trait variation and environmental change Check your understanding of advantageous traits, disadvantageous traits, trait variation, and environmental change in this set of free, standards-aligned practice questions. Wieteke Holthuijzen exercise https://www.khanacademy.org/science/grade-6-science-tx/x6eddf2e1c524bf5a:traits-and-the-environment/x6eddf2e1c524bf5a:trait-variation-and-environmental-change/e/apply-trait-variation-and-environmental-change 2026-06-30T17:20:49.845080165Z Apply: Trait variation and environmental change Apply your understanding of advantageous traits, disadvantageous traits, trait variation, and environmental change. Wieteke Holthuijzen exercise