The overuse of antibiotics has led to a) the extinction of viruses. b) the extinction of bacteria. c) new antibiotic-resistant populations of viruses. d) new antibiotic-resistant populations of bacteria.

answer: "circumcision is a common procedure in which the skin covering the tip of the penis is surgically removed."

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.