C) oak trees.....................................................................................srry needed 20 characters.
It can by a more truthful theory
There would be less oxegen and also economically exploit us as 80% of things we use is from trees. we will be ruined, that's for sure.
Colpidium colpoda is in contact with the environment due to its membrane containing receptor, once it detects the presence of a bacterium able to be phagocyted by the cell, it will go towards it by the cilia there will have membrane invagination due to the contraction of the cytoskeleton (actin-myosin) with the presence of ATP generated by mitochondria, and a stimulation of the secretion of enzymes to degrade the ingenous bacterium (RNA synthesis by the nucleus and translation by ribosomes).
D. As you can see the number of rabbits increased so it could not have been c, rabbits are part of the Anamilia kingdom so they do not reproduce asexually, and limiting factors would also cause them to decrease, so the answer is D<span />