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10 Cards in this Set
- Front
- Back
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Which organism is multicellular but has not tissue organziation |
Porifera (sponge) |
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Which organism has tissue organization but is radial like porifera |
Jellyfish, cnidarian |
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What phylum are round worms from |
Platyhelminthes |
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What makes bilateral symmetry unique from radial symmetry? |
Due to cephalization which they developed sensory equipment, including CNS brain in the head. However with radial they are enable to meet environment equally well from all sides. |
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Which phylas are true chordatas |
Echinodermata Chordata Annelida Mollusca Arthropoda |
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Which phylas are acoleomates |
Platyhelminthes |
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What does coeleo mean |
Not spine but a true body cavity Bilateral symmetry Has spine |
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Coelomate vs acoelomate |
The body cavity lies between the epidermis anf body voering of the gastrointestinal cavity Coeleomates True coelom completely lined by mesoderm derived epithelium have a great degeee to grow and move independentenly Fluid filled cavity also acts as a hydrostatic skeleton which gives some support and shape especially to those animals with a hard skeleton Acoeleomates Lack a fluid filled body cavity.lined with mesoderm. Lack a fluid filled cavity |
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Dipoblastic |
A two layered embryo |
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Pseudocoelomates pjylum |
Not completly lined with mesoderm Rotifera nematoda |
