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Grade 8 Medium • Natural Selection

Natural Selection: Variation and Population Evidence

Analyze the fictional beetle population. Color variation already exists, is inherited, and affects visibility to birds on dark bark.

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Comprehensive Lesson Guide: Natural Selection: Variation and Population Evidence

Teaching focus


Natural Selection: Variation and Population Evidence

Analyze the fictional beetle population. Color variation already exists, is inherited, and affects visibility to birds on dark bark.

Using this activity


Read the supplied material together before independent work. Use the response spaces to show reasoning. For drawing or extended writing, continue on the back if needed.

Reviewing responses


The teacher key includes correct responses or example answers and criteria. Accept other answers when they are supported by the supplied evidence. Observation and personal-response tasks should be checked against the learner's actual work.

Curriculum reference


Candidate: NGSS MS: natural selection and adaptations. This is a candidate domain, not a certified standards mapping.

Versions


This activity has a fixed sequence to keep its context and steps together.

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