Sediments and rocks that are moved around by agents of erosion, tell us the history of where they started. If the White Cliffs of Dover in England, were once sea shells, what does that tell us about what happened in the past in that area?

How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?

Name the organs of humanelemintary canal.

Aresearcher designed an investigation to test what effect eating different types of food would have on blood insulin levels. she selected 10 male subjects who were all 25 years of age and in good health. the experiment took place over 3 days. at 8: 00 a.m. on each day, the subjects ate a meal consisting of only 1 type of food. they had their blood insulin levels measured after consuming the meal. on day 1 they ate a high fat diet, on day 2 they ate a high protein diet, and on day 3 they ate a high sugar diel what is the independent variable in this experiment? a the age of the subjects b the blood insulin level c the type of food consumed d the time of day the meal was consumed