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Behavior
Explanation
There are many pieces of evidence that support the validity of the theory of evolution. Like any theory, it is open to debate, but Darwin's theory is reaching a point where it is as credible as any other.
Similarities-
There are many things that are common to all forms of
live on earth. The use of DNA based on the same sequence of
amino acids is a sure indicator that all life began from one
point. The use of ATP as the energy carrier in cells also
shows an interconnection. The general theory is charted
above. A certain kind of bacteria, referred to as
archea-bacteria were the first to evolve. This was when
conditions were very toxic to current forms of life. Once
things began to settle, normal bacteria evolved and began to
exhale oxygen. Evnetually, carnivorous bacteria evolved into
eukaryotes, from where animals evolved.
The
Genetic Evidence- With the new thechnology that
is available, it has been shown that all animals have
similar DNA, just in the same way that all plants have
similar DNA.
Fossil
Evidence- Scanty at first, but now very well
developed, the fossil record shows the past generations of
creatures that were our ancient ancestors. One can see how
living things evolved and became new species as their body
structures changed.
