1 / 16

Kingdom Animalia : Porifera & Cnidaria

Kingdom Animalia : Porifera & Cnidaria. Unit 6 – Lecture 7. Kingdom Animalia. Animals Are: eukaryotic multicellular sexually reproducing mostly some have asexual reproduction. Kingdom Animalia. Animals Have: have no cell wall have specalized cells. Kingdom Animalia. Animals Have:

nathaniel
Download Presentation

Kingdom Animalia : Porifera & Cnidaria

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. Kingdom Animalia:Porifera & Cnidaria Unit 6 – Lecture 7

  2. Kingdom Animalia • Animals Are: • eukaryotic • multicellular • sexually reproducing mostly • some have asexual reproduction

  3. Kingdom Animalia • Animals Have: • have no cell wall • have specalized cells

  4. Kingdom Animalia • Animals Have: • most have tissues • tissue – groups of specilized cells that work together as a single unit. • examples: heart, lung, skin…etc • organs are made of tissues

  5. Symmetry • Asymmetry • non-symmetrical • most are sessile • sessile – non-moving • ex: sponges

  6. Symmetry • Radial Symmetry • symmetrical from the center out • develops from • 2 layers of cells • 2 OR 3 layers of tissues • ex: starfish, jellyfish, etc.

  7. Symmetry • Bilateral Symmetry • bi = two, lateral = refers to side • symmetrical along a median line • develops from 3 layers of tissues • ex: most commonly chordates

  8. Phylum Porifera • ex: sponges, aka pore-bearers • asymmetrical [or radial] – sessile • 2 layers of cells – no tissues • no body cavity

  9. Phylum Porifera • get nutrients thorugh filter feeding

  10. Phylum Porifera • reproduces • sexually with gametes • asexually using gemmules [like budding] • asexually using fragmentation • respires through diffusion

  11. Phylum Cnidaria • jellyfish, hydras, anemone, coral…etc • aka stinging-celled organisms • Cnidarians Have: • radial symmetry • 2 layers of tissues • simple nervous system • senses chemical “smells” & touch

  12. Phylum Cnidaria • Cnidarians Have: • 2 body forms

  13. Phylum Cnidaria • ingestion using tentacles • nematocysts – small, harpoon-like stinging cells inside of cnidocytes

  14. Phylum Cnidaria • Cnidarians Have: • digestion using gastrovascular cavity • gastro = stomach • gastrovascular cavity – singular cavity which includes digestion and respiration

  15. Phylum Cnidaria • reproduce • sexually with gametes • asexually using budding • immortal jellyfish?? • respires using diffusion

  16. HW: • Finish Porifera/Cnidaria pages for tomorrow • read the Cnidaria worksheet

More Related