Which of these structures contains a male gametophyte? A pine life cycle. Each letter marks a definite structure of this cycle. Letter A marks a structure that gives rise to and contains female reproductive cells. Letter B marks a part of the inner structure of the ovule. Letter C marks a big cell in the ovule. Letter D marks a round structure in the outer layer of the integument. Letter E marks a small structure formed in a microsporangium. A B C D E

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.  

well, i believe that the answer is 2. : 3