Clemson's onside kick went out of bounds. Coker took a knee and after a two-year drought that felt like eternity in Tuscaloosa, Alabama was back on top. The Crimson Tide became the second team in college football's poll era, dating back to 1936, to win four titles in seven seasons.
The Problem With Monocultures The problem with monocultures, Wetzel said, is that if an insect likes the crop, that insect has a large food supply to draw from all in one place. Conversely, a field containing a variety of plants does not offer a large block of food for the insect, so it will not get the nutrients it needs to survive and thrive.
Lack of biodiversity is also a problem should a virus or disease threaten, without a good diverse range of plants a species a virus or diseases can devastate an area, take for example a Pine forest, all the trees have been planted with the same species for commercial cropping, should a disease breakout that effects pine trees they will rapidly become infected, the resulting loss of forest habitat will quickly effect those species living there, a more diverse planting would ...