What substances can be reabsorbed in the proximal tubule? ?

Which of the following is an example of this type of co-evolution

Rotenone is an insecticide that is toxic

Red flowered snapdragons are crossed with white flowered snapdragons, producing all pink snapdragons in the f1 generation. what would you expect if you crossed pink with pink? 3/4, 1/4, 1/2 red, 3/4,/1/2,/1/4 pink,1/2, 3/4, 1/4 white