BIO 263 Lecture Notes - Lecture 2: Uniformitarianism, Scientific Theory, Photoreceptor Cell
Document Summary
Things change slowly over very long time. Can lead to the evolution of novel species. Geological formations occur slowly over the same rate today as in the past. Taken a very long time for canyons to form. Darwin took information from his work and applied it to living organisms such as the fact that they could live currently. Lyell died not accepting evolution but accepted extinction. Not everyone makes it and organisms die. Concerned about human life and came to conclusion that production of food increases linearly however population of humans increased exponentially. Favorable variations would tend to be preserved, and unfavorable ones to be destroyed - darwin, on reading malthus" work. Predation is the excess pressure when there are too many of a species trying to escape from predators in ecosystems. The ones which do not get hunted by predator often have traits that make it more difficult to catch thus making these crickets superior compared to the others.
