The process of keeping the internal environment of the body stable by responding to changes in the external environment is known as homeostasis. Which of the following accurately describes a mechanism for maintaining homeostasis at the cellular level?

Passive transport, where ATP is used to facilitate the movement of molecules from
high to low concentrations.

Facilitated transport, where enzymes are used to increase the rate of solvent transfer
across a membrane.

Active transport, where the solution is pumped across a membrane to from high to
low concentrations.

Active transport, where molecules are pumped across the cell membrane against the
gradient from low to high concentration.

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.

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.  

not too sure but maybe in the hot springs.