'Comb jellies' presentation slideshows

Chapters 32,33,34

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9 REAL Halloween Monsters

These creatures all exist in our world today and are every bit as fantastical as our imaginations. 9 Real Halloween Monsters!

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Architectural Pattern of an Animal

Architectural Pattern of an Animal. Chapter 9. The Appearance of Major Body Plans. The Cambrian explosion marks the earliest fossil appearance of all major groups of living animals plus some groups that are only known from fossils. All major body plans appeared at this time.

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Architectural Pattern of an Animal

Architectural Pattern of an Animal. Chapter 9. The Appearance of Major Body Plans. The Cambrian explosion marks the earliest fossil appearance of all major groups of living animals plus some groups that are only known from fossils. All major body plans appeared at this time.

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Invertebrates

Invertebrates. Asymmetrical (no symmetry at all) No true body cavities (coeloms), just cells and tissues surrounding a water-filled space. Debate on whether a sponge is multicellular or colonial. Sponges. http://www.youtube.com/watch?v=RmPTM965-1c (sponges)

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How many lines of symmetry?

How many lines of symmetry?. Fertilized egg. Zygote is one diploid cell made by the fusion of the sperm and egg. In humans this is internal fertilization within the fallopian tubes. Many other organisms have external fertilization where the egg and sperm are both released outside the parent.

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Objectives: Relate the form of specific structures to their function within this group.

Sponges, Cnidarians, Comb Jellies, and Marine Worms. Objectives: Relate the form of specific structures to their function within this group. Compare and contrast radial and bilateral symmetry. Apply how the evolution of the segmented body led to increased motility. Vocabulary. Budding

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Stephen Jay Gould & Niles Eldredge. 1993. Punctuated equilibrium comes of age. Nature: 366: 223-227.

We have no evidence that the species of 'living fossil' groups are particularly old. For example, the western Atlantic horseshoe crab, Limulus polyphemus --the 'type example' of the phenomenon--has no fossil record at all, whereas the genus can only be traced to the Miocene [about 20 mya].

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Zooplankton

Zooplankton. Objectives. Be able to define zooplankton Be familiar with the major groups of zooplankton and their characteristics Explain the benefits of zooplankton Explain how certain zooplankton can gauge reproductive success. Zooplankton.

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Comb Jellies Phylum- Ctenophora

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Comb Jellies Phylum- Ctenophora

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Comb Jellies Phylum- Ctenophora

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Phylum ctenophora

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Phylum ctenophora

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Phylum ctenophora

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