BIOL 1015 Lecture Notes - Lecture 18: Uterine Contraction, Ectoderm, Ectotherm
4 Apr 2016
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Document Summary
During early embryonic development, cells begin to specialize. Embryo turns into a gastrula and three embryonic tissues form. Mesoderm prodices muscle tissues, connective tissues, and epithelial tissues of various organs. Endoderm produces only epethelial tissue of certain organs. Ectoderm produces epethelial and nervous tissue of certain organs. Keratin in hair, nails, toughness of epidermis, reptile scales. Plasma composed of an aqueous mixture of proteins. Connective tissue (creates non cellular matrix for ex bone, cartilage, and plasma) Dna absorbs ultra violet ight and can mutate. *iclicker* an important example of negative feedback physiology in animals is. Oxytocin causing increased uterine contraction in mammals (this is a. Endotherm: organism generates its own het and can regulate it itself. Homeotherm: maintains stable temperature though temp can ary widlely with surrounding environmental temperature. Stilting (allowing air to flow under their body to cool down) *iclicker* loud stadiums and rock concerts are an example of positive feedback.
