1 / 10

Arthropods

Arthropods. Arthro = Joint Pod = Foot. What do these animals have in common?. Tough Exoskeleton (chitin – “ ky - tin”). Jointed Appendages. Segmented body. Why an exoskeleton?. Protection Flexible or Hard Support Added strength Anchor point Waterproof P revents water loss.

frieda
Télécharger la présentation

Arthropods

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Arthropods Arthro = Joint Pod = Foot

  2. What do these animals have in common? Tough Exoskeleton (chitin – “ky- tin”) Jointed Appendages Segmented body

  3. Why an exoskeleton? • Protection • Flexible or Hard • Support • Added strength • Anchor point • Waterproof • Prevents water loss

  4. Challenges? • Exoskeleton (armour) does not grow with the animal • Rigid covering allows movement only at joints

  5. Why jointed legs? • Strong/light and adaptable • Antennae, claws, legs, wings, flippers … evolve from the same jointed appendages

  6. Segmentation Why might several body segments help in evolution? • Each repetitive segment can evolve a unique purpose!

  7. Phylum Arthropoda Subphylum Uniramia Chelicerates Crustaceans Centipedes & Millipedes Insects

  8. Body Plan (insect)

  9. Spider Body Plan

  10. Crustacean Body Plan

More Related