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