Homologous pairs separate in meiosis , and sister chromatids separate in meiosis .

Meiosis I

Meiosis II

Explanation:

Homologous pairs of cells are present in meiosis I and separate into chromosomes before meiosis II.

In meiosis II, these chromosomes are further separated into sister chromatids. 

Meiosis I includes crossing over or recombination of genetic material between chromosome pairs, while meiosis II does not.

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.