Ferritin is an intracellular protein storing iron. It is found in hemoglobin that aids in metabolism function. Meanwhile, glycogen is a carbohydrate consist of glucose which can be hydrolyzed if needed. The answer then is that both ferritin and glycogen functions by storing the materials needed by an organism like humans.
C: Exposing the plant to a higher light intensity
Coal came from swampy environments, while oil and natural gas came from open ocean environments is true about fossil fuels. The correct option among all the options that are given in the question is the third option or option "c". Coal mainly came from decomposition of plants for a long time and oils as well as natural gases are mostly found in ocean environments.
A. Community.
This is because a community contains living this, and biotic means living.