Thursday, October 24, 2013

Evolution Reflection

  1. Does evolution tend to proceed slowly and steadily or in quick jumps?
I think it varies. Clearly, humans evolved over thousands of years, and that was just a short span of time. For plants, it took millions of years. This shows that it is not the same for all species, and depends on the environment.
  1. Why are some clades very diverse and some unusually sparse?
Depending on their location, some may need not evolve any more. If they have reached a point where they can survive with no problems, then they do not need to evolve to adapt to their environment.
  1. How does evolution produce new and complex features?
Evolution produces new features, because organisms are constantly needing to adapt in the changing world. Because the world is experiencing a warm up period, life will have to evolve it's features to survive.
  1. Are there trends in evolution, and if so, what processes generate them?
Yes, there is a trend. Organisms evolve based on their environment. This inclues predators, climate, and food supply. This all changes with, or without, the organisms. 

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