Cellular differentiation is the process by which a less specialized cell becomes a more specialized cell type. this process is controlled by
a.) temperature
b.) respiration
c.) gene expression
d.) sensory neurons

The correct answer would be C) gene expression.

Specialized cell refers to a differentiated cell which which performs specific function in the body. For example, RBC helps in transportation of oxygen and carbon dioxide in the body, nerve cell helps in transmission of electrochemical signals throughout the body et cetera.

Undifferentiated cell becomes specialized cell through gene expression.

Each cell in the body contains same genes; however, a particular set of gene is expressed in particular type of cell.

Consequently, different sets of proteins are formed which leads to formation of different types of cells.

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.  

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.