vs. Evolution II
by Jeremy E., Creation
vs. Evolution II Team Member
Evolution is a fairly simple idea. A broad definition of it is
"Species change over time." Another definition, along
with some of its concepts and related ideas, can be found below.
- A change in the relative frequency of an allele within a
- Natural selection
- The organisms best adapted to their environment are able
to reproduce and pass on their traits to the next
generation, while less adapted organisms don't reproduce
as much or at all. Also known as survival of the fittest.
- Punctuated equilibrium
- Evolutionary rates have not remained constant. Instead,
species evolve in response to changing environmental
conditions. The faster the conditions change, the more
quickly evolution happens.
- The splitting of one species into two. This only happens
when the two parts are separated reproductively by some
effect of a different trait.
- Differences in traits within a species.
- A specific group of organisms that can interbreed.
- A group of organisms that can interbreed and produce
- A physical feature that can be passed on to the next
- Gene drift
- The prevalence of one allele over another for reasons not
related to survival of the fittest. Usually caused by
random variations in a small population.
- A form of a gene.
- A piece of genetic data that codes for a specific trait.
Evolutionary theory is supported by a huge body of evidence,
including the fossil record and observations of organisms alive
today. That is one of the reasons it is embraced by most
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