I think it would be Positive
Answer:Digestion works by moving food through the GI tract. Digestion begins in the mouth with chewing and ends in the small intestine. As food passes through the GI tract, it mixes with digestive juices, causing large molecules of food to break down into smaller molecules.
Explanation:
Certain genes/cells are activated/turned on (how ever you want to word it)
If the a decomposer were absent from the forest, everything would just pile up onto one another and never be returned to the Earth.
