The food pyramid is an example of science influencing society.

The food pyramid is an example of science positively influencing society.

Explanation:

We consider something as a positive influence, when it results in improvements for society and citizens as a whole. In this case, we can say that the food pyramid is an example of science that positively influences society. This is because the food pyramid informs how people should eat healthily, without excesses and supplying all the needs of their body, leaving the population more healthy and nourished.

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explanation:

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."