BSC 1011C Study Guide - Final Guide: Circulatory System, Gastrointestinal Tract, Germ Layer

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3 Jul 2017
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Animal characteristics: nervous and muscle tissue are unique to animals (tissue are. Development: cleavage (rapid cell division that occurs after a zygote is formed by a groups of similar cells that act as a functional unit) sperm and an egg), blastula (after cleavage this forms, multicellular, hollow), Gastrulation (happens after blastula, forms a gastrula with embryonic tissue layers; the digestive tube in the center is the archenteron) Metamorphosis (happens to a larva to become adult), hox genes (regulate development of the body form, only animals have this), bilateral symmetry (dorsal/top side, ventral/bottom side; are often sessile or plankton, move actively and have a central nervous system) Protostome (animals where blastopore becomes the mouth, cleavage is spiral and determinate), deuterostome (cleavage is radial and indeterminate, blastopore becomes the anus, mesoderm buds from wall of archenteron to make the coelum) Animal origins: choanoflagellates (there are similarities between genes coding for.

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