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.
1 For one, the eukaryotic is much larger in size compared to a prokaryotic cell. 2  Eukaryotic cells have membrane-bound organelles. 3  Prokaryotic cells have only one organelle: the ribosomes. 4  Ribosomes look different in size and shape in prokaryotes than eukaryotes. Eukaryotic cells have membrane-bound organelles. 2  Prokaryotic cells have only one organelle: the ribosomes. 3  Ribosomes look different in size and shape in prokaryotes than eukaryotes. 4  Eukaryotic has nucleus, the control center of the cell.