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Drill

Drill. What do centipedes, horseshoe crabs, and scorpions have in common?. Answer: Arthropods . By: Justin Lloyd Brad DeBoy Alec Hawkins Tyler Koslofsky . Crab. Scorpion. Butterfly. Cool Stink Bug. Centipede. Grasshopper. Millipede. Scorpion (#2). Tarantula. Crazy Crab. Lobster.

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Drill

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  1. Drill What do centipedes, horseshoe crabs, and scorpions have in common?

  2. Answer:Arthropods By: Justin Lloyd Brad DeBoy Alec Hawkins Tyler Koslofsky

  3. Crab

  4. Scorpion

  5. Butterfly

  6. Cool Stink Bug

  7. Centipede

  8. Grasshopper

  9. Millipede

  10. Scorpion (#2)

  11. Tarantula

  12. Crazy Crab

  13. Lobster

  14. Beetle

  15. Lobster (#2)

  16. Mating Horseshoe Crabs

  17. COLORFUL BEETLE

  18. Unit Vocabulary • Appendage- Any complex part or organ extended from the body. • Arthropod- Segmented animal with jointed appendages and a exoskeleton • Chelicerates- Includes spiders, scorpions , mites, ticks, sea spiders, and horseshoe crabs. • Chitin- clitellum of each worm secretes a tube made of mucus and tough carbohydrates

  19. Cont.. Vocab • Crustaceans- An Arthropod with mandibles and branches appendages. • Exoskeleton- The hard, external cover of some invertebrates that provides protection and support. • Molting- The process of shedding an exoskeleton or any other outer layer of an animal. • Spiracles- An external opening of a trachea in an insect myriapod spider. • Uniramians- Centipedes, millipedes, and insect.

  20. General Characteristics of Arthropods • 1. A hard outer body covering called an exoskeleton • 2. Specialized mouth parts • 3. Jointed legs • 4. Compound eyes • 5. Segmented body parts

  21. Body Plan • Arthropods have segmented bodies • Body sections bear jointed extensions called appendages (ex: legs+ antennae) • Have an exoskeleton that provides protection and support

  22. Body Plan cont… • Made up of 3 sections secreted by the epidermis • 1st layer is waxy and composed of a mixture of protein and lipids • 2nd layer is comprised of protein and chitin and provides primary protection • 3rd layer contains proteins and chitin • Is flexible at the joints to allow movement

  23. Body Plan cont.. • Has a high level of cephalization meaning that it has many sensory organs and appendages in one region • Have segmented antennae and compound eyes that have individual light receptors • Sensory organs send nerve impulses to the brain that coordinates movement • Have open circulatory systems

  24. Molting • Arthropods molt their exoskeleton to allow for growth.

  25. Crustaceans • Crustaceans have an exoskeleton, two parted limbs, and nauplius larvae (their eggs). • Examples: Crabs, Lobsters, Shrimp

  26. Chelicerata • They have segmented bodies with jointed limbs. • They have open circulatory system. • They used to be predators, but are now mostly involved in mutualism, and scavenging. • Examples: Horseshoe Crabs, scorpions, spiders, mites, harvestmen (Daddy Long Legs), ticks.

  27. Uniramians • They have exoskeletons, and jointed appendages. • Legs are only one branchthey are interterrestrial. • They have antennae. • Examples: Insects, centipedes, millipedes, and beetles.

  28. VIDEO TIME • http://www.youtube.com/watch?v=UFe3cZLuhUs • http://www.youtube.com/watch?v=DX_rgHHWwv8 • “Baby You’re an Arthropod” • Tarantula Song

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