The decision to take a step down a staircase may be made by a small area of the brain. However, it involves contraction of muscles on both sides of the body. These muscles must be stimulated by many different neurons. This is an example of what kind of a circuit

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.  

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just finished the test, the answer is d, greg is the least cost-effective because he charges the most for the project