1. In gerbils, solid-colored fur is a dominant trait (C), and multicolored fur is
recessive (c). If a gerbil has the genotype Cc, what is its phenotype?

Dominant

Explanation: Since the genotype is Dominant Recessive, it will be dominant always. If you have 1 or more Dominant trait for genotype, your what ever (in this case gerbil) will be Dominant. If the genotype of gerbil was recessive recessive, it would have been multicolored gerbil. But anyway, the answer is Dominant. ( Solid colored )

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.