Put the following in the correct sequence. Place a #1 by the first event, #2 next to the second, etc, etc. a. Oxygen levels in the atmosphere began to increase
b. Eukaryotes lived in the ocean
c. Multicellular life like sponges live in the ocean
d. Modern humans evolve
e. Prokaryotes such as bacteria lived in the oceans
f. Unicellular eukaryotes live close together and begin cooperating
g. Multicellular organisms moved to the land
h. Prokaryotes evolved the ability to do photosynthesis due to a beneficial variation

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