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Insects

Insects. Classification of Insects. Kingdom Animalia Invertebrates Phylum Arthropoda Exoskeleton Jointed legs. Class Centipedes Class Millipedes. Class Crustaceans. Class Arachnids. Class Insecta Characterisitics. 3 body parts Six legs. Class Insecta Characteristics.

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Insects

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  1. Insects

  2. Classification of Insects • Kingdom Animalia • Invertebrates • Phylum Arthropoda • Exoskeleton • Jointed legs

  3. Class Centipedes Class Millipedes Class Crustaceans Class Arachnids

  4. Class Insecta Characterisitics • 3 body parts • Six legs

  5. Class Insecta Characteristics • Two pairs of wings • Two kinds of eyes • compound

  6. Class Insecta Characteristics • Two Antennae • Two sets of jaws

  7. Class Insecta Characteristics • All insects begin their life cycle as an egg.

  8. Insect Orders

  9. Insects place in the Animal Kingdom • 1 million species identified (Most populous of all living things) • Most diverse of all organisms

  10. Insects place in the Animal Kingdom • Can live in any environment • Well adapted to their environment • camouflage

  11. Harmful Insects • Destroy Crops • Carry/Spread Diseases Parasitic

  12. Helpful Insects Food for other organisms Pollinate flowers to produce fruits and vegetables

  13. Helpful Insects Eat other harmful insects Help in decay of dead organisms

  14. True Bugs All bugs are insects but not all insects are bugs Order Hemiptera Long feeding tubes

  15. Exoskeleton • A hard outer covering • Used for protection • Made of chitin

  16. Insect Head – Eyes, mouthparts, antennaeInsect Thorax – legs, wingsInsect Abdomen – digestive and reproductive organs

  17. Insect Antennae (Feelers) • Sensory Organs • Touch • Taste • Smell • Hearing

  18. Insect Mouthparts Sponging/Lapping Ex. housefly Siphoning/Proboscis Ex. butterfly

  19. Insect Mouthparts Piercing/Sucking Ex. Wheel bug and Mosquito Chewing Ex. caterpillars None Ex. mayfly

  20. Insect Wings Membranous Clear with veins showing Hard shell like outer wings Powdery Scales

  21. Insect Life cycles • Simple Metamorphosis hatches from egg looking just like the adult grows in size by molting

  22. Insect Life Cycles • Incomplete Metamorphosis • Hatches from egg and becomes a nymph • Nymph does not have fully developed wings • Molts to become an adult

  23. Insect Life Cycles • Complete Metamorphosis • Egg • Larva (Caterpillar) • Pupa (Chrysalis or Cocoon • Adult

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