An unknown sample is tested for chemical composition. You receive the following results: iodine test = purple; biuret test=blue; Benedict's test = green; and paper lipid test = greasy spot. Which of the following are present in this sample? (Select all that apply)
Check All That Apply
starch
protein
sugar
Lipids
None of these are present

Which of the following is likely not involved in this example of ecological succession? a) the rotting remains of plants add to the fertility of the soil. b)the soil becomes so fertile that eel grass is replaced by other plant species. c) the roots from plants stabilize the sediment, keeping it in place. d) the concentration of salt becomes so high that all plant life is destroyed.