Evolution

Ape to Man By: Appalanaidu Pappala

Evolution is a change in the gene pool over the course of many generations. Evolution has 4 main forces that guide it so that animals can not only adapt to their environment, but also avoid death long enough to reproduce to their full potential. These 4 forces guiding evolution are: Mutations, Natural Selections, Genetic Drift, and Genetic Flow. Mutations are changes in the genes that are mostly random, and as such can have positive and negative effects of the mutated organism, though most mutations are neutral. Natural Selection is the process where animals that have more survivable traits can reproduce to their full potential, while animals that don't have the same gene die before they can reproduce. Genetic drift is the gradual loss of genes, most occurring in small populations of organisms. Genetic Flow is the transfer of genes from one population to another population.

SP4: Analyzing and interpreting data
In class, we did a lab in, which we recorded the data of M&Ms on a table as if they were a population going through evolution generations at a time. We looked at the table that we made and figured out if mutations had become a prevalent feature in the population. We also saw what affect having a smaller population of only select individuals would have to the gene pool.

XCC: Systems and System Models
In evolution, there are 4 different systems that dictate how an animal can change, like if an animal has natural camouflage to hide from predators, or the intelligence to make cover for them to hide in. With mutations that is mostly random, it doesn't tie into the other three functions as well either. But with the other three functions they tie into each other nicely, an animal moves from one population to another. That animal finds them self in a smaller population than before, it reproduces and over generations. That animals gene becomes more prominent, because not only is it a dominant trait, it is also more survivable so, animals that posses that trait are able to reproduce to their full potential. What just happened was not only genetic flow, but also genetic drift, and natural selection.