Provides almost all of the energy in living systems needed for metabolism. a)sugar b) the sun c)fat d) protein

Why does the author follow up on the story of martin torres near the end of the article? what important ideas does this part of the article support?

Which inequality is represented by this graph? f(0, 1)

Which generalization does the speaker make in the last stanza of to a louse? a) our main source of power comes from living blunder-free lives b) sometimes the best gifts come in the form of little creatures c) seeing ourselves as others see us would free us from blundering