The U.S. Environmental Protection Agency said Wednesday that the average fuel economy of 2015 model-year vehicles increased 0.5 mile per gallon to a record high of 24.8 miles per gallon. Mazda had the highest average fuel economy of 29.6 mpg, the EPA said. Fiat Chrysler had the lowest, at 20.8 mpg. Most manufacturers improved over 2014, but General Motors Co. and Toyota Motor Corp. both had lower fuel economy in 2015 because they produced more trucks. Weight loss is one reason that fuel economy is increasing.
Prokaryotes and eukaryotes both have a plasma membrane. Prokaryotes also have a cell wall. Some eukaryotes also have cell walls, including plant cells and fungi. Prokaryotes and eukaryotes both have a plasma membrane. Prokaryotes also have a cell wall. Some eukaryotes also have cell walls, including plant cells and fungi.
Both cells have a cytoplasm and nuclear membrane, and the use of DNA for its genetic information. The main distinguishing factor of a Eukaryotic Cell from the Prokaryotic Cell is the presence of nuclear envelope.Prokaryotic cells are generally smaller than Eukaryotic cells.embrane Bounded Organelles [edit]. Membrane bound organelles are absent in prokaryotic cells. Eukaryotic cells are known to be multicellular organism that have membrane enclosed organelles. A variety of membrane bound organelles can be found in a eukaryotic cells, each with their corresponding function.