Objectives

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11a: EXAMINE organisms or their structures such as insects or leaves and use dichotomous keys for identification

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11b: EXPLAIN variation within a species that enhance its survival.

- external features

- behaviors

- migration

- hibernation

- storage of food in a bulb

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11c: IDENTIFY some changes in genetic traits over several generations.

- natural selection

- selective breeding

Key Terms

adaptation

dichotomous key

natural selection

selective breeding

variation