Montreal Protocol is the correct answer I think
The amniotic egg is a characteristic of both B and C. Both reptiles and birds have the characteristic of the amniotic egg.
The total amount of oxygen in the ecosystem,light available, and sugar molecules would decrease.
For each of the examples, simple diffusion, carrier, and channel mediated, each type involves the flow down a concentration gradient. This means that the molecules flow from an area of high concentration to an area of low concentration. In turn, this allows for a passive process, meaning no ATP is needed! I hope this explains your question.
