During a race, the body temperature of a runner increases. The runner responds by perspiring, which lowers body temperature. This process is an example of Question 1 options:
A. Maintenance of homeostasis by positive feedback
B. Maintenance of homeostasis by negative feedback
C. A chemical defense against predators

B. Maintenance of homeostasis by negative feedback

Explanation:

A negative feedback loop is one where the body responds by changing the expected outcome.

So as the runner's body temperature increases, they perspire, which LOWERS their body temperature.  This means that perspiring is a response that changes the original response, as their body temperature decreases rather than continuing to increase from exertion.

where is the diagram?

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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.