During stressful situations the sympathetic nervous system is activated <span />
Answer: they have to maintain homeostasis, so they remove waste to do so..
Decomposers eat dead remains of organisms that are quaternary consumer (no one eats them while alive). So, they break these down and therefore turn into nutrients in the soil for plants to use.
I believe it is the frequency, because when a oscillation occurs that is the starting point to determine when another wave is to come.
