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sex determination - reproductionsex whether an individual will be a male or a female is determined at fertilisation and this directs and controls all
normal 0 false false false en-in x-none x-none microsoftinternetexplorer4
asexual reproductionasexual reproduction is also known agamic reproduction because there is no involvement of gametes in it asexual methods of
controlled hypothermiaalthough birds and mammals frequently function in the homeothermic mode and maintain relatively high stable temperatures many
heat loss temperature regulation is extremely uneconomical if it depends only on variations in metabolism therefore mechanisms for losing excess heat
exercise- heat production during physical activity heat production by exercise can to some extent substitute for heat generated by shivering however
shivering - heat production the mechanism of thermogenesis with which we are more familiar is shivering and all adult birds and mammals seem to use