Succession and Natural Selection

I believe the succession of the ecosystem that I viewed is a secondary succession. The reason that I believe that it is a secondary succession is because there was already soil and vegetation present. Also in a primary succession there is no soil, only bare rock. A secondary succession happens after a disturbance destroys the existing vegetation. Secondary succession then repairs by growing new vegetation. This process may take many years to occur but once it is done the land is once again full of life.

If a salamander has no hind limbs and has only small limbs in the front of its body, then the salamander has adapted to his climate. Many animals over time either grow more hair for cold climates or some animals may have clear bodies for very dark climates. These salamanders must be around water regions or very smooth regions. They most likely do not have to worry about climbing rough ground or have to worry about digging for food. Most of the creatures from water regions do not have claws or need to be able to run fast. These creatures just swim or slither as fast as they can to get away or to catch food. In the natural selection process these animals adapted what they needed to survive where they are to suit them better for their environmental conditions.

References

Axia College Axcess page, 2008, Chapter Six Ecosystems and Evolution, Retrieved on March 28, 2008

Axiacampuss.phoenix.edu

Science Buddies, 2002-2008, Help with Hypothesis, Retrieved march 28, 2008

www.sciencebuddies.org

...