A worker in a silver mine descends 58 feet. Use an integer to represent the change in the​ worker's position. The integer that represents the change in the​ worker's position is ___.

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How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain

What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?

Suppose you use three different scale to weigh a bag of organges. one scale says the nag weighs 2.1 lb, and third says it weighs 2.1 lb. the actual weight of the bag of organges is 2.153 lb. which of the following best decribes these results?