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Arthropods

Arthropods. By: Viki Mjartanova. Characteristics. Invertebrates Segmented body Appendages: jointed attachments (wings, legs) Exoskeleton (waterproof shell) made of chitin Open circulatory system. Subphyla . Insects. Arachnid. 2 body sections 4 pairs of legs No antennae

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Arthropods

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  1. Arthropods By: Viki Mjartanova

  2. Characteristics • Invertebrates • Segmented body • Appendages: jointed attachments (wings, legs) • Exoskeleton (waterproof shell) made of chitin • Open circulatory system

  3. Subphyla Insects Arachnid 2 body sections 4 pairs of legs No antennae Live mostly on land • 3 body sections • 3 pairs of legs • 2 antennae • Live mostly on land Crustaceans • 2-3 body sections • 5 or more pairs of legs • 2 pairs of antennae • Live in water or damp places

  4. More Subphyla Myriapod Can have over 100 sections Can have over 750 legs 2 antennae Live in humid environments such as in soil and under leaves or wood. Isopod • Number of sections varies • 10-20 legs • 2 antennae • Live in water and on land.

  5. Symmetry • Bilateral symmetry

  6. Reproduction and Development • Most reproduce sexually • Internal fertilization: sperm/egg unite inside the body • Metamorphosis: process of becoming an adult in stages • Incomplete : Looks like an adult, but smaller • Sheds skin to grow • Complete: Looks different when young • Changes into a pupa where it becomes an adult

  7. Food • Already dead organisms • Animals killed by them • Plantlike microorganisms • Crayfish will also eat other crayfish.

  8. Examples • Crayfish • Lobsters • Tarantula • Crickets • Cockroach • Scorpion • Tick • Praying Mantis • Cicada • Fiddler crab

  9. Something Cool • Lived on Earth for approximately 540 million years. • The Japanese spider crab has a leg span up to 4m and can live for 100 years.

  10. Thanks for Listening~ See you next time!

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