BIOL 111 Lecture Notes - Lecture 11: Gastrovascular Cavity, Median Plane, Hydrostatic Skeleton

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BIOL 111 Full Course Notes
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BIOL 111 Full Course Notes
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Biology lecture 11: cnidarians & platyhelminthes negin arbabi. Embryonic: in a rudimentary stage with potential for further development. Zygote: the cell created by the union of two gametes, in which the gamete nuclei are also fused. Embryo: a young animal while it is still confined within a protective structure such as an egg or uterus. Symbiosis: the living together of two or more species in a prolonged and intimate relationship. Parasitism: a parasite infestation, living as a parasite. Note: most animals undergo unique embryonic development patterns and have tissues. Embryonic development changes that occur between zygote stage in the embryo stage. Zygote (a multicellular organism): diploid cell resulting from the union of two haploid gametes; 1st cell of 2nd generation. Embryo: young animal or plant while it is still contained within a protective structure. Two major processes occurring during embryonic development include: cleavage: cell division. Process forming many cells from one cell: gastrulation: in-folding.

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