What is an thises in an essay ?

The actors spoke loudly clearly and confidently. punctuate this sentence using the oxford comma

What is the subject of “understanding bacteria,” the first module in dr. x and the quest for food safety? the structure of bacteria the four cs of food safety the role of bacteria in food safety the twelve most unwanted food bacteria

The rich natural resources made the sacramento valley a "garden of eden." permanent villages were established about 8,000 years ago.which choice combines these two sentences from paragraph two to achieve a coherent flow of ideas? a) the rich natural resources made the sacramento valley a "garden of eden" and permanent villages were established about 8,000 years ago. b) permanent villages were established about 8,000 years ago and the rich natural resources made the sacramento valley a "garden of eden." c) the rich natural resources made the sacramento valley a "garden of eden; " and so the permanent villages were established about 8,000 years ago. d) because of the rich natural resources which made the sacramento valley a ‘garden of eden,’ native americans established permanent villages there 8,000 years ago.