Though some bacteria cause disease and illness in humans, the majority are harmless. some bacteria are used to aid digestion, used in preparation of certain foods, used to battle infections or used by industry. bacteria have many important roles in nature. all but one is a role of bacteria out in the world around us. a) some bacteria increase the soil fertility. b) bacteria carry out 60% of total nitrogen fixation in natural ecosystems. c) bacteria are responsible for converting sunlight into usable chemical energy. d) bacteria decompose organic matter, by decay and putrefaction, to keep our earth clean.

To store strawberries in sugar syrup, lucy placed them in a jar and covered them with sugar but did not add any water. do you think syrup will be formed? justify. a. no. since water is not added, there cannot be any syrup formation. b. no. the higher concentration of sugar on the outside will cause the water from the sugar to diffuse in the strawberry cells causing them to swell without formation of any syrup. c. yes. the higher concentration of sugar on the outside will cause the water from the strawberry to diffuse out resulting in syrup formation. d. yes. the sugar will melt over time and form the syrup.