This unit was about evolution and how it occurs in our everyday lives, and what factors effect evolution. The themes of this unit were evolution, and how evolution is connected with geology and the geological timeline. The parts of this unit include natural and artificial selection, allele frequency, speciation, the structural evidence of evolution, and how populations evolve. Natural and artificial selection act on the phenotype of different individuals, who must adapt to constant changes within their environment. Natural selection acts on these phenotypes and in the process decrease the allele frequency within the population. This allows for speciation, in which related species no longer are able to reproduce with each other, and thus evolve into new species. The types of change that cause evolution within populations include genetic drifts, gene flow, mutation, natural selection, and sexual selection. These all change the allele frequency and affect evolution. Another theme that we learned about was how populations evolve. The three types of change are directional change, stabilizing change, and disruptive change. These show how the genotypes and phenotypes change, and are caused by the different types of change. Another theme we learned about was earths geological history and how earth formed. Earths history was caused by many major events, which include mass extinctions and adaptive radiation, in which their is rapid speciation from a common ancestor. Scientists use radioactive dating of radioactive isotopes in the rocks to determine age. Earths history is split into Eras, Periods, and Epoch's. This unit greatly relates to our previous units about genes, since evolution affects phenotypes, but has a greater impact on the genes of individuals. The labs we did in this unit include the:
In my
Unit 7 Reflection, I learned about my conflict style and found that my dominant style was assertive, though my second one was passive aggressive. I have taken steps to be more assertive in projects by making sure that I am not overpowering or aggressive to my teammates and to make sure that all people win, and that I am a good teammate.
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