Lactobacilli and humans: lactobacilli are a type of bacteria that live in our lungs and destroy many of the harmful microorganisms that enter our respiratory system. they are highly adapted to living in our lungs and can’t survive in many other habitats. a- commensakism b- parasttm c_ mutual ism

as the gila monster consumes the eggs or young of the desert cottontail and gambel's quail, thus its main food supply is only accessible for a restricted time duration every year. however, for this, the gila monsters exhibit three adaptations, which elevate their survival rate in the desert condition.  

first, is that they possess huge bodies, and can consume greater concentrations of food during a small period. secondly, they require to feed infrequently as they can accumulate fat in their tails. ultimately, their rate of metabolism is very low, so that they can burn their reservoirs of fat gradually.  

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