Arthropods

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Arthropods
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What structures make an Arthropod an Arthropod?

• Jointed Legs
• Hard Exoskeleton

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Interesting Facts

• Arthropods have an exoskeleton that does not grow
  along with the animal so it must be shed from
  time to time leaving the animal vulnerable to
  attack.
• They live on land and in water.
• There are more species of arthropods than any
  other animal species combined.
• An estimated 80 of all animals are Arthropods.

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Interesting Facts (Cont.)

• The success of arthropods is related to their
  hard exoskeleton, segmentation, and jointed
  appendages. The appendages are used for feeding,
  sensory reception, defense, and locomotion.

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Classes (main groups) of Phylum Arthropoda

• Class
• Crustaceans (Lobsters, Crayfish, Shrimp and more)
• Class
• Arachnids (Spiders with 8 legs and 3 body
  sections)
• Class
• Centipedes
• Class
• Millipedes
• Class
• Trilobites (extinct)
• Class
• Insecta (Insects with 6 Legs, 3 body sections,
  and an exoskeleton)

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Crustaceans

• Have gills and live in a watery place

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Arachnids

• They have eight legs, two body sections and an
  exoskeleton (outside skeleton).

Brown Recluse
Black Widow
Wolf Spider
Hobo Spider
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Centipedes

• Carnivores, Legs out to the side of body

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Millipedes

• Many little legs under the body

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Trilobites (extinct)
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Crayfish Classification ?

• Kingdom?
• Phylum?
• Class?
• Order?