Person or Organism:
Alfred Wallace
Experiment or Observation:
Alfred Russel Wallace and Charles Darwin launched the study of evolution. They figured out that the environment acts on populations to select the in individuals that have the best ability to survive and reproduce. This guarantees succeeding generations will have the same traits that allow survival and reproduction in higher proportions. Evolution itself is the change in the gene pool of the collective DNA of different individuals that is acted on by the same environment.
We see that natural selection and evolution will happen in a population if two conditions are met:
1) There must be genetic variation
2) There must be pressure from the environment that favors one combination of
…show more content…
This process was called natural selection he claimed that it was the basic mechanism that had brought about the diversity of the life on earth. Since the late 1800’s the theory of explanations of how evolution works had become more a theory of evolution.
As more explanations (evolutionary theory) became accurate, the observations began to accurate, they began to explain the facts, that these facts control the theory, not the other way around.
Darwin’s natural selection had several components. Darwin first observed
1) All species produce more offspring than are needed to maintain their populations (replace the parents), and not all of the offspring survive. 2) In any species, there are differences between individuals that are passed from generation to generation (inherited genetic variation). 3) Some of the individuals in a population have more offspring than others.
From those observations, Darwin inferred the following.
1) The individuals who inherited a set of characteristics that best allowed them to survive in their environment were the ones who had more offspring (this is called differential reproductive