For most folks, their knowledge of the importance of microbes is limited to just those microbes that cause sickness. However, you know better! Which of the following describes a true critical feature of microbe biology illustrating their importance? (there can be more than one answer)a.) microbes are very small, and make up a very small portion of the Earth's biomass. b.) they influence our neurobiology and are critical components of ruminant animal digestive systems. c.) some produce oxygen. d.) they are critical for the process of decay. e.) some can fix atmospheric nitrogen which is important for plant growth. f.) they are used in the food and beverage production industry they are important food source for aquatic life