Im not positive, but i believe that the heat on the burner would allow her to control the rate of reaction!
The answer is D. Both a and c
I'll need to see the choices/options in order to answer.
The right answer is angiosperms
One of the major turning points in this plant history is undoubtedly the appearance of angiosperms (flowering plants) towards the early Cretaceous. The first dinosaurs lived in a plant universe that is noticeably different from the one we know today because it is dominated by ferns, cycads, conifers and plants that are now extinct.
The relationship between the ant and the cicada is Parasitism --- One organism benefits, by hurting the other organism. I hope that this is the answer that you were looking for and it has helped you. Have a nice day.