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Biology Lab #1

animal kingdom -multicellular -heterotrophic -eukaryotic (has nucleus) -tissues from embryonic layers -nervous and muscle tissues are unique to animals
embryonic layers -ectoderm (exoskeleton) -mesoderm (organs) -endoderm (inner lining of organs)
diploblastic 2 germ layers (ecto and endo)
triploblastic 3 germ layers (ecto, meso, and endo)
types of symmetry -asymmetry (none) -radial (spherical like jellyfish) -bilateral (mirror image like human)
levels on organzation domain, kingdom, phylum , class, order, family, genus, species
porifera -sponges -multicellular -cellular level of organization -neither diplo or triploblastic -asymmetric -have spicules (skeletal structures)
cnidarians -tissue level of organization -radial symmetry -diploblastic -one opening into gastrovascular cavity
platyhelminthes -most are parasitic -tissue level of organization -triploblastic -acoelomate (no body cavity) -bilateral symmetry -one opening into gastrovascular cavity
types of body cavities -acoelomate (none) -pseudocoelomate (body cavity partially lined w. mesoderm) -coelomate (body cavity fully lined w. mesoderm)
Created by: studystack_0325