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What are Invertebrates?

Chapter 1 Lesson 3. What are Invertebrates?.  Read the paragraphs in page 138, 139. What are Invertebrates?.  Invertebrates are animals without a backbone . Insects. Spiders & ticks. Three body parts. Two body parts. Eight legs. Don’t have wings. Have an outer covering. Body parts.

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What are Invertebrates?

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  1. Chapter 1 Lesson 3 What are Invertebrates?

  2.  Read the paragraphs in page 138, 139. What are Invertebrates?  Invertebrates are animals without a backbone.

  3. Insects Spiders & ticks • Three body parts • Two body parts • Eight legs • Don’t have wings • Have an outer covering Body parts • Six legs 2. Legs • Many have wings 3. Wings • Hard outer covering 4. Body covering  Invertebrates are classified into smaller groups by the ways they are alike. Compare And contrast

  4. Snails, clams and squids • They all have soft bodies. • Most of them have a head. • Some of them, like the squid, have tentacles. • Some of them, like the clam and the snail, have hard shells to protect their soft bodies, and have a “muscular” foot that helps them to move.

  5. Other invertebrates: • Worms have no shells, legs or eyes. • Starfish is covered with spines that protect it. • Sea anemone opens its mouth, its tentacles makes it look like a flower. • Crab has hard outer covering like the insects.

  6. Invertebrates are important: • Earthworms improve the soil by its movement because they mix air into the soil. • Bees and butterflies move pollen from one flower to another. • Many invertebrates are foods for other animals. People can eat clams and crabs. • Bees produce honey, make beeswax which is used to make candles for example.

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