Biology Reasoning

Introduction: Charles Darwin simply brought something new to the old philosophy -- a plausible mechanism called "natural selection." Natural Selection is basically the passing of traits. Depending on the population of the species and the effects the environment has, will factor how the species will adapt or not. With this, a less productive species will gradually eliminate over time. Behavior can also be shaped by natural selection.
Example: Behaviors such as birds' mating rituals, bees' wiggle dance, and humans' capacity to learn language also have genetic mechanisms and are subject to natural selection.


Inference: The evidence of the chart above showing the basic steps and changes the leads to Natural Selection and how they all tie into each other suggests that having struggles can lead to environmental changes which is a part of Natural Selection which can lead to evolution.


Inference: The evidence of the chart above showing the elimination of some of the offspring suggests that because the F1 generation was mutated than that lead to the F2 generation having an unfavorable affect on that generation because of Natural Selection. Throughout the whole pedigree chart, Natural Selection continued to affect the next generations.

external image darwin_finches.jpg

There is differential reproduction, basically meaning the species who is less fit for its environment will not reproduce. Therefore, it will not extend its genes to the future. It is nature way of exiling out the bad characteristics.Since the environment can't sustain unlimited population growth, not all individuals get to reproduce to their full capability.
Inference: the evidence that over time the Finches characteristics in their beaks changed suggest that over time where they lived or what food they ate changed because their beaks had to adapt.


The evolution of Ape to man has happened over time and has been a beneficial thing for everyone. Natural Selection was apart of this and Charles Darwin saw the advancements we were making.
The pictures above show the different stages/kinds of Natural Selection.
Stages/Kinds of Natural Selection:
Stabilizing: Average organisms that survive.
Directional: Organism at one extreme of the population that survives.
Disruptive: Organisms where both were extreme and both survive.

Reasoning for findings:

Adaption: a behavior that allows better evasion of predators, a protein that functions better at body temperature, or an anatomical feature that allows the organism to access a valuable new resource
Fossils: remains of long dead organisms.
Embryology: the study of embryos the earliest stage of babies
Anatomy: The study of our babies
Biochemistry: The study of small molecular itams