Which level of organization falls directly after the tissue level when listed in order from least to most complex

If someone could do the first couple, just so i can see how it's done that would be great! 20 points. complete a dichotomous key for the 10 leaves on the common leaves sheet. the chart provided here allows for 11 pairs of statements. depending on how you build your dichotomous key, you may or may not need all of them, or you may need to add some.

Which process can increase the rate of greenhouse gas emissions into the atmosphere in response to a decrease in albedo

Where can you find prokaryotic and eukaryotic cells?