How would you revise the simulation so users can evaluate the role of human activity in the pH of the ocean? if you have done or are currently in biology on e2020 please help

What do all macromolecules have in common with each other? oa. they all are formed from the same elements.ob. they all have major roles in cell membranesoc. they all act as catalysts in the body.od. they all have peptide bonds between carbon atoms.

In the diagram below, the northern hemisphere would be in what season at position a a.fall b. winter c.summer d.spring

Use the phylogenetic tree to the right to determine which statement below is true. organisms a and f are not related. organism e is more closely related to organism b than organism f. organisms c and d are more closely related than organisms a and b. phylogenetic trees