Ecosystem and pond,
not sure though but good luck !
D looks like the oldest one because there is barley anything there. if not then I would do b
Answer:
Alright love, it would be - mast cells
The disadvantage of having imformation at your fingertips is that not all of information could be true but only mere ideas or theories and that having alot of information can be overwhelming to the point where you can process so much information you might forget about the important things you come across for some propaganda trying to get your attention
