This essay is about evolution, how why and when.

What Is Evolution?

Biological evolution refers to the changes that occur in a state over time. These changes atomic number 18 produced at the genetic level as organisms genes mutate and/or recombine in different shipway during reproduction and are passed on to future generations. Sometimes, individuals inherit invigorated characteristics that give them survival and reproductive advantages in their local environments. These characteristics tend to increase in occurrence in the state, while those that are harmful decrease in frequency. This process of making more of the best and noticeting rid of the worst is known as natural selection or survival of the fittest. Some spate think that any change in an organisms body or genetic makeup is evolution. However, this is not true. Non-genetic changes that occur during an organisms life span, for event increases in muscle tissue due to exercise cannot be passed on to the next generation and are not examples of evolution.

Are solely species related?

Yes. Scientists today believe that all organisms share an root somewhere in their history. When this theory is put into a graph it looks much like a tree. Therefore scientists cave in named this map the Tree of Life. Every branch of the tree represents a different species, and everywhere the branch forks or splits represents the common root word that binds two species together.

How do organisms evolve?

Individual organisms dont evolve. Populations evolve. Because individuals in a creation vary, some in the population are better equal to survive and reproduce given a particular descend of environmental conditions. These individuals generally survive and produce more offspring, so passing their advantageous traits on to the next generation. Over time, the population changes.

What do genes have to do with evolution?

First of all, to understand what genes have to do with evolution you must understand what...

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