Dormancy Worksheet 1 Regular cycles of dormancy are major features of lifestyles 2 Dormancy is caused by and food availability 3 What are the three kinds of dormancy 4 During hibernation body temperature is reduced to within degrees or less of the environmental temperature consumption is markedly reduced is accompanied by activation of the major heat producing mechanisms 5 What are the four characteristics of hibernation 6 What are some examples of hibernators in the animal world 7 What are the three steps for entrance into hibernation 8 How is hibernation similar to diving mammals 9 T F Breathing still occurs at a constant rate in dormancy just slower 10 Dormancy is resetting the not turning it off 11 Cold blooded warm blooded animals cannot arouse themselves circle one 12 T F Hibernation can be induced in the lab 13 Hibernation is not a continuously state for months awake at regular intervals 14 Do brown or yellow fat areas maintain a higher temperature 15 T F the entire reproductive system does not function during hibernation 16 Larger species take for arousal 17 What things might trigger arousal out of hibernation 18 What are the three steps for arousal of the hibernator 19 T F Ectotherms truly hibernate 20 What do ectortherms do for torpor 21 Terrestrial hibernators must find sites below the In mud herps must switch to respiration on the bottom of the lake they use increases respiration 22 Why are ice crystals so bad What do they do intracellulary Extracellulary 23 Some species are freeze tolerant they use an antifreeze in cells made of called Then of their body becomes ice their heart stops and their metabolism stops for 2 wks 24 is a less severe depression of core temp It s found in amphibians in the desert Some animals produce epidermal and spend in this dormant state 25 has a high cost Some animals abandon it daily or seasonally 26 Nightly occurs in bats and small mammals The animal s body temp falls 5 15C O2 consumption decreases and there is a high metabolic cost of arousal May be an adaptation to 27 Dormancy is a mechanism for thermostat or physiological standards for periods of time when becomes too costly
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