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Chapter 6

Chapter 6. Marine Animals Without Backbones. Protista. Single cellular eukaryotes & multicellular algae. Protozoa. Heterotrophic of animal-like protists. Foraminiferans. Protozoan with a calcium carbonate shell. Radiolarians. Protozoan with a glass shell. Ciliates.

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Chapter 6

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  1. Chapter 6 • Marine Animals Without Backbones

  2. Protista • Single cellular eukaryotes & multicellular algae

  3. Protozoa • Heterotrophic of animal-like protists

  4. Foraminiferans • Protozoan with a calcium carbonate shell

  5. Radiolarians • Protozoan with a glass shell

  6. Ciliates • Protozoan with hairlike structures on its surface that is used for mobility

  7. Pseudopodia • False feet • Oozing cytoplasm

  8. Ooze • Fine sediment on the ocean floor

  9. Calcareous Ooze • Fine sediment made up of calcium carbonate

  10. Siliceous Ooze • Fine sediment from silicates or silicone dioxide

  11. Diatomaceous Ooze • Fine sediment from diatom shells

  12. Foramaceous Ooze • Fine sediment made from the shells of forams

  13. Radiolarian Ooze • Fine sediment made from radiolarian shells

  14. Animalia • Multicellular complex heterotrophs • No cell wall • No Chloroploasts

  15. Vertebrates • Animals with backbones

  16. Invertebrates • Animals without backbones

  17. Sponge • Phylum: Porifera

  18. Characteristics • Simplest animal, No true tissue, Little symmetry, Pores, Sessile as adult, protein skeleton, spicules, regeneration, sex & asex

  19. Spongin • Protein skeleton in sponges

  20. Spicules • Glass barbs emitted by sponges when you rub against one

  21. Sessile • Attached to a surface

  22. Osculum • Opening at the top of a sponge • Water forced out through osculum

  23. Suspension Feeders • Organisms that feed on suspended particles

  24. Filter Feeders • Organisms that filter particles out of the water

  25. Types of Sponges • Boring Sponge • Glass Sponge • Encrusting sponge • Bath sponge

  26. Jellies • Phylum: Cnidaria • Coelenterata • Jellies, coral, sea anemones, hydras

  27. Characteristics • Tissue but no organs, transparent jelly-like body, radial symmetry, tentacles, stinging cells • sexual & asexual

  28. Medusa • Bell shaped drifting body with tentacles hanging below

  29. Polyp • Tubular shaped body • Attached to a surface at one end • Tentacles point out

  30. Radial Symmetry • Symmetry like a circle or ball, one slice may be cut out of the circle that is identical to other slices

  31. Nematocysts • Stinging cells

  32. Planula • Larval stage of Cnidarians that is planktonic

  33. Classes of Cniderians • Hydrozoa • Anthozoa • Scyphozoa • Siphonophora

  34. Hydrozoa • Willowy polyp • Hydras

  35. Anthozoa • Muscular polyp • Sea anemones, & coral

  36. Scyphozoa • Medusa • Jelly fish or jellies

  37. Siphonophora • Floating colonies with gas filled bell & hanging tentacles • Portugese Man-of-war

  38. Comb Jellies • Ctenophora • Radially symmetrical with eight rows of cilia

  39. Flat Worms • Phylum: Platyhelminthes • Organs & crude systems, Bilateral symmetry, flattened body

  40. Bilateral Symmetry • Bodies are arranged into two identical halfs • Left & right

  41. Cephalization • Head formation • Anterior end

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