How do cells of bacteria differ from those of eukaryotes?	Bacteria are prokaryotes (has no nucleus). eukaryotes contain a nucleus.
What do bacteria need to survive?	Bacteria must have a source of food and a way of breaking down the food to release its energy.
Under what conditions do bacteria thrive and reproduce?	When bacteria have plenty of food, the right temperature, and other suitable conditions, they thrive and reproduce frequently.
What positive roles do bacteria play in people's lives?	Bacteria are involved in oxygen and food production, environmental recycling and cleanup, and in health maintenance and medical production.
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