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Week 3 Check Point Succession and Natural Selection

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Week 3 Check Point Succession and Natural Selection
The succession viewed in the chapter 6 animaon is the secondary succession. Since there was
already soil and plant life that existed in the area it cannot be considered primary since that is
the succession involved when there is nothing but bare rock. In this animaon we are witness to
the eects caused by damming up a stream or river.
This parcular salamander evolved this way in order to increase its chances of survival. With
the reducon of limbs in the back and shorter or smaller limbs in the front, this salamander is
able to swim at faster speeds and hide be"er in small places under the water.
While other salamanders have four strong legs they are poor swimmers, making it harder for
them to catch food under water. However, by having four strong legs they are able to catch
insects on which to live o of. The other ones that evolved without these powerful legs are
pre"y well helpless on land but are excellent in $nd food under water. They have evolved in this
way due to the abundance of food in the water where they live and reduce their predators by
staying under water. While having the body of an eel it is easier to catch food from the water
and quickly hide in case a predator shows up.

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Week 3 Check Point Succession and Natural Selection The succession viewed in the chapter 6 animation is the secondary succession. Since there was already soil and plant life that existed in the area it cannot be considered primary since that is the succession involved when there is nothing but bare ...
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