Which event would be the result if populations of producers in an ecosystem became unstable?
The energy flow into the food web would decrease or increase along with changing populations of producers.
Decomposers would become the primary energy source.
The number of primary consumers would decrease dramatically.
The direction of energy in the food web would change directions and flow toward the producers.

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