Question:

Give one example of something that can cause changes to ecosystems. It can be a natural event or a human activity.

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

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

What type of plant is good for a bioassay and where can i buy it? i only have a month.