1 / 31

Sponges

Sponges. Sponge Taxonomy. Kingdom Animalia Phylum Porifera. Characteristics of Sponges. Simplest animals, multicellular No organs or body systems Cellular digestion Asymmetry. Characteristics of Sponges. Filter feeders- Sessile (don’t move) Reproduce sexually (sperm and eggs)

nuri
Download Presentation

Sponges

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. Sponges

  2. Sponge Taxonomy • Kingdom Animalia • Phylum Porifera

  3. Characteristics of Sponges • Simplest animals, multicellular • No organs or body systems • Cellular digestion • Asymmetry

  4. Characteristics of Sponges • Filter feeders- Sessile (don’t move) • Reproduce sexually (sperm and eggs) • Reproduce asexually (regeneration) • Skeleton composed of spongin (soft) and spicules (hard)

  5. Sponge Anatomy • Sponges have a simple body plan. The body of a sponge forms a wall around a central cavity. Water is pulled into the central cavity through pores in the sponge body.

  6. Central Cavity

  7. Sponge Anatomy • Osculum • Large opening at top of sponge where water exits.

  8. Osculum

  9. Sponge Anatomy • Collar cell • Layer of cells with flagella. • The movement of flagella keeps a water current going into the sponge. • Food vacuoles in the collar cells digest plankton and other small organisms.

  10. Osculum Collar cell

  11. Sponge Anatomy • Epidermal Cell • Outer layer of cells. • Protect inner layer of cells.

  12. Osculum Collar cell Epidermal cell

  13. Sponge Anatomy • Ambeocyte • Cells within the sponge that move around supplying nutrients and take away wastes. • Also build spicules.

  14. Osculum Collar cell Epidermal cell Ambeocyte

  15. Sponge Anatomy • Pore Cell • Small openings in side of sponge that pull in water.

  16. Osculum Collar cell Epidermal cell Ambeocyte Pore cell

  17. Sponge Anatomy • Spicule • Made of either Calcium carbonate (CaCO3) or Silica (SiO2). • Spicules interlock to form “skeleton” of sponge.

  18. Osculum Collar cell Epidermal cell Ambeocyte Pore cell Spicule

  19. Sponges’ Importance in Nature • Many marine animals live on or in sponges. • Snails, starfish and fishes eat sponges. • Sponges break down old shells and coral and “clean up” the ocean floor.

  20. Sponges’ Importance to Humans • Since the times of Greeks and Romans, humans have used the dried and cleaned bodies of sponges in bathing. • Scientist are learning to use chemicals produced by sponges. • Antibiotics to fight diseases. • Chemicals to fight leukemia.

  21. Things that bug me about SpongeBob Square Pants

  22. He LIVES in a SPONGE!!

  23. Patrick is MORE EVOLVED

  24. Gary is MORE EVOLVED

  25. Squid ward is more EVOLVED • Of course

  26. Mr. Krabbs is more EVOLVED

  27. Watching Sponge Bob

More Related