Process: - Air is taken through the mouth - Enters the lungs - The oxygen fills the sacs in your lungs - Carbon dioxide is removed from the lungs and exhaled - The oxygen is pass throughout your body.  Question: suppose more air available happens, how will it affect LESS oxygen reaching the body.  How does the supposed perturbation influence the second effect mentioned. Answer by more, less or no effect
Ans: less

Process: - A forest fire starts - The trees and plants burn - The animals lose their homes - If the animals can not escape, they may die from smoke inhalation - The plants that provide food are gone - The animals have little to eat -   Question: suppose people are less careful in the forest happens, how will it affect a SMALLER negative effect on animals.  How does the supposed perturbation influence the second effect mentioned. Answer by more, less or no effect
Ans: less

Process: - Minerals fill spaces between bits of sediment - The sediments become glued together - The glued together parts become hard like cement - The sediment becomes a big rock - The rocks erode slowly - The rocks come apart - The rocks become smaller rocks - The rocks continue to erode into smaller rocks - The process starts again.  Question: suppose the mix will not ignite in the engine happens, how will it affect LESS sedimentary rock forming.  How does the supposed perturbation influence the second effect mentioned. Answer by more, less or no effect
Ans: no effect

Process: - Electrical signals in the brain travel through nerves to muscles - Two types of proteins exist in filaments in the muscles - The filaments move when the brain instructs them to - The motion of the filaments cause the muscle to shorten and contract - Opposing pairs of muscles exist in order to provide the necessary range of motion.  Question: suppose there is less nerves in the brain happens, how will it affect the muscle will shorten less.  How does the supposed perturbation influence the second effect mentioned. Answer by more, less or no effect
