Process:  - Spores are dispersed into the air by a mature mushroom - The spores fall to the ground - The spores germinate - The spores begin to grow mycelium - The mycelium begin to sprout a bud - A new mushroom is formed.  Perturbation hypothesis: suppose there are fewer mature mushrooms happens, how will it affect there will be fewer spores.  Does the supposed perturbation have an effect (direct or indirect) on the process?
Answer:
yes