This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: sedge grass began to grow. Now the ecosystem in the pond now becomes a bog ecosystem. With the bog system maturing, the soil starts to fertilize. With time passing it starts to get different species of trees to grow and form in the large pond. Then with many years going by the bog starts to diminish and it becomes a bog forest. It seems that there is more secondary succession is more common than the primary succession. Propose a hypothesis to explain how limbless salamanders evolved according to Darwin’s theory of natural selection? I would have to say that in this case with the salamander. The salamander doesn’t support its own weight in the water so having extra limb’s it would slow it down. So in this case it can swim faster and is able to move faster to get away from other animals. I think over time this kind of salamander will be to pass along traits and then some day all salamanders will have no or smaller limbs. CHECKPOINT: SUCCESSION AND NATURAL SELECTION 3...
View Full Document
- Fall '11
- Biodiversity, Natural environment, Ecological succession