A farmer notices that his lettuce crops are covered in a white film and that the lettuce is being destroyed.  Which type of protist is most likely growing on the lettuce

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?

Variety of living organisms; includes genetic, species, and ecological types.

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