N and P limitation is strongest in aquatic ecosystems (because
light and water isn't) governed by same principles as terrestrial ecosystems radically
different environmental controls streams have been treated as "sewers of
terrestrial ecosystems" yet stream ecosystems have their own
characteristics generated by the interaction of biota with the physical and chemical
properties of the system unlike terrestrial ecosystems, nutrients
"spiral" rather than cycle. The more limiting the nutrient, the
tighter the spiral. Detritus/heterotrophs <---> autotrophs.
Drivers should not use their cell phones behind the wheels, because of the danger of accident. The use of cellphones causes 26% of the nation's car accidents. <span>Using a cell phone while driving increase your risk of having an accident about 400 percent. </span>
I know number 2 off the top of my head:
1. Cells are the most basic unit of life.
2. All living things are composed of cells.
3. Cells come from other cells.
