Homo erectus represents a different kind of hominin than the more ancient african predecessors. one of the reasons is

One of the reason is : An increased body size and robustness. They have long spatial/temporal range , they were the first hominin to leave Africa, they have modern human body proportions , they were the first to have a protruding human nose and they actively were hunting.

answer; /// i believe that the correct answer is ( monophasic ); ethinyl estradiol- ethynodiol diacetate is a monophasic oral contraceptive agent; ///

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.