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KEY CONCEPT Insects show an amazing range of adaptations.

KEY CONCEPT Insects show an amazing range of adaptations. thorax. head. abdomen. Insects are the dominant terrestrial arthropods. Insects are in nearly every ecological niche. Insects have a body with three parts. head thorax abdomen.

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KEY CONCEPT Insects show an amazing range of adaptations.

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  1. KEY CONCEPT Insects show an amazing range of adaptations.

  2. thorax head abdomen Insects are the dominant terrestrial arthropods. • Insects are in nearly every ecological niche. • Insects have a body with three parts. • head • thorax • abdomen

  3. Some insects live independently, others live in social colonies.

  4. adult nymph stage larvae Insects undergo metamorphosis. • In incomplete metamorphosis, insects look like miniature adults when they hatch. • There are three life stages of incomplete metamorphosis. • larva • nymph • adult

  5. Larva Egg Pupa Adult • In complete metamorphosis, the insect changes form entirely. • There are three life stages of incomplete metamorphosis. • egg • larva • pupa • adult

  6. Insects have adapted to life on land. • The evolution of flight occurred in insects 400 million years ago.

  7. An insect’s mouthparts are adaptations related to its specialized diet. • siphoning mouthparts

  8. chewing mouthparts

  9. piercing/sucking mouthparts

  10. sponging mouthparts

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