PHYS 1070 Study Guide - Quiz Guide: Organism, Territorial Claims In The Arctic, Thermoregulation
29 Mar 2017
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Discussion with jacobs: more sa= more heat leaving heat thus you need. they need to eat constantly to get metabolism going to heat body thus rabbit eats more than bear. Body size determines how long you hibernate. smaller ones hibernate longer because it takes lots of energy to get up again. Animals in arctic adept to the environment endotherms: maintain internal temp. with metabolic processes ectotherms: can"t retain heat generated from metabolic processes. Fishes lose it thru the gills and dissipates quickly in water. Following paths in winter for terrestrial animals: through freeze-thaw cycles as they can"t avoid melting (how does this happen? hibernate (have a lower set point, don"t lose control over temp regulation) regulate temp. thru behavioural mechanisms. Plants follow the paths such as: short plants freeze tolerant and small. Homeostasis: maintained internal condition in response to changes in external or internal environment.
