Project: Phylogenetics Organ System ProjectGoal: Track the Development of an Organ System Through the Animal Phyla
Information:
Requirements:
Steps: 1. Pick an organ system
2. The Paper: Create a paper that traces the development of the organ system through all the Phyla.
Major Phyla Of Animals (link)
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Understanding the ScienceResources |
Introduction
1.Animals are eukaryotic. 2.Animals cells lack cell walls. 3.Animals are multicellular. 4.Animals are heterotrophs that ingest food. 5.HOX GENES – Responsible for Segmentation
"Animals not usually included in botany courses; without cell walls and without photosynthetic pigments, forming diploid blastula; there are more than one million species of animals in at least 30 phyla, more species than all the other kingdoms combined; more than half of all animal species are insects (800,000 species), and beetles (300,000 species) comprise the largest order of insects (one fifth of all species based on a total of 1.5 million); if all the species of plants and animals on earth were lined up at random, every 5th species would be a beetle." (link)
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For Each PhylaA paragraph on each of the phyla
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Conclusion
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Porifera "Sponges"1. Identify as Sponges:
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Cnidaria "Jellies"2. Identify as Jellyfish, Corals, Anemones
Includes: Jellyfish, Corals, Anemones, Hydra: - Many cnidarian species exist in two different body forms during their life cycle: the free-swimming form, called the medusa (a jellyfish for instance), and the stationary form called the polyp (which resembles a tiny sea anemone). (link)
3. Two main life forms: free-swimming medusa (e.g., jellyfish) or stationary polyp (e.g., anemone)
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Worms
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Special structures contained in cells called cnidocytes or cnidoblasts that can act in both offense and defense (Unique Character)
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Molluscs:
7. Identify as: Clams, Snails, Slugs, Nautilus, Squid, Octopus
Radula - Rasping Tongue |
Arthropods:
6. Identify as: Crustaceans, Spiders, Millipedes, Centipedes, Insects
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Echinoderms:
8. Identify as: Sea Stars, Brittle Stars, Sea Urchins
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Chordates:
9. Identify as: Sea lances, tunicates and craniates (you know vertebrates the best)
Later, they were modified into internal gills used for respiration ►Take this time to research your organ system in chordates. - This group is very diverse and is highly variable and is up to you on what to focus on. Heres a tip: ►Focus on the 3 subphylums: 1.Cephalochrdates 2.Urochordates 3.Craniates (you can go into the vertebrates from there if you choose) |