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Chapter 13 Section Review

Chapter 13 Section Review. 3. ARTHROPODS. Jointed appendages Segmented bodies Exoskeletons. Insects. Three body regions Head Antennae Eyes (Single or Compound) Mouth Thorax Three pairs of legs Sometimes one or two pairs of wings Spiracle Abdomen Reproductive structures

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Chapter 13 Section Review

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  1. Chapter 13Section Review 3

  2. ARTHROPODS • Jointed appendages • Segmented bodies • Exoskeletons

  3. Insects • Three body regions • Head • Antennae • Eyes (Single or Compound) • Mouth • Thorax • Three pairs of legs • Sometimes one or two pairs of wings • Spiracle • Abdomen • Reproductive structures • Spiracles

  4. Arachnids • Two body regions • Cephalothorax • Abdomen • Four pairs of legs • No antennae • Many have venom glands, stingers or fangs

  5. Centipedes and Millipedes • Long bodies • Many segments and legs • Antennae • Simple eyes

  6. Crustaceans • Crabs • Crayfish • Shrimp • Barnacles • Pill Bugs • Water Fleas • 5 pairs of legs • Antennae • Mandibles • Swimmerets

  7. Answer to Question 1 What are the advantages and disadvantages of an exoskeleton?

  8. Advantages • Prevents dehydration • Supports and protects body

  9. Disadvantages • Body outgrows exoskeleton • Animal is vulnerable to predators while new exoskeleton hardens.

  10. Answer to Question 2 Compare and contrast the stages of complete metamorphosis and incomplete metamorphosis.

  11. Complete Metamorphosis • The insect begins as an egg. • The egg develops into a larva. • The larva develops into a pupa. • The pupa develops into an adult.

  12. Incomplete Metamorphosis • The insect begins as an egg. • The egg develops into a nymph. • The nymph molts several times and develops into an adult.

  13. Answer to Question 3 List four ways arthropods obtain food.

  14. Ways Arthropods Obtain Food • Chewing • Piercing • Sucking • Lapping up nectar

  15. Blood Sucking Tick

  16. Nectar Lapping Butterfly

  17. Bug Chewing Praying Mantis

  18. Answer to Question 4 Evaluate the impact of arthropods. Why are they important?

  19. Why are Arthropods Important? • They are an important food source for other animals. • They pollinate crops. • They prey on harmful organisms. • They are used in the medicine industry. • They can also destroy crops, carry disease and destroy property.

  20. Answerto Question 5 Make an events chain concept map of complete metamorphosis and of incomplete metamorphosis.

  21. Incomplete Metamorphosis EGG NYMPH ADULT

  22. Complete Metamorphosis EGG LARVA PUPA ADULT

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