About Me
Thursday, February 24, 2011
Blog #3 Semester 2
Explain what microevolution is? What are the three ways that variation occurs?
Microevolution is evolution, or changes, in gene frequency that responds to a population. The three ways that the variation can occur is through mutation, natural and artifical selection, and genetic drift.
Blog #2 Semester 2
Blog # 2 Why is fossil record hard to interpret?
Many fossils are thousands or million years old. Some of the fossils are broken and only some parts of the fossil is not damage. In this case, it is very hard to inerpret the fossils if the fossils is not in one piece. Sometimes, sand and dust can also damage and cover some parts of the fossils.
Many fossils are thousands or million years old. Some of the fossils are broken and only some parts of the fossil is not damage. In this case, it is very hard to inerpret the fossils if the fossils is not in one piece. Sometimes, sand and dust can also damage and cover some parts of the fossils.
Saturday, February 5, 2011
Blog #1 Semester 2
Why is evolution a theory and not a law?
Evolution is the change over time in the proportion of individual organisms differing in one or more inherited traits. The evolution is a theory because there is not enough information to prove how the evolution started. No one knows how the first cell in this planet is created. Therefore, the evolution can only be a theory.
Evolution is the change over time in the proportion of individual organisms differing in one or more inherited traits. The evolution is a theory because there is not enough information to prove how the evolution started. No one knows how the first cell in this planet is created. Therefore, the evolution can only be a theory.
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