Evolution
Thursday, April 19, 2012
Monday, April 16, 2012
In evolution there are two kinds, micro and macro. Micro is
changes within a species. They are pretty easy to explain ever since Darwin
completed his work on natural selection. They cause variety among the same
species, like birds and their beaks, or alligators and their lengths.
Macro is
change from one species to another. This is not so easily to explain, actually
they’re seems to be no agreement on how it happens, their all ideas that lead
to more questions. We rarely see mutations, how can it be that there could have
been so many in the beginning of life to cause new species fast? Maybe Animals could crossbreed and still be
able to reproduce, or UV radiation provoked mutations as well as changes in
environment.
Thursday, April 12, 2012
Many people think that everything has a common ancestor, having us all linked in the same tree. I think maybe we came from one of two origins, since life can be created both on land and in water. In some places the to trees would come together and others they would be by themselves. This would explain why some animals stay in water, some cant swim, and some can thrive on both.It can't explain the mutations, but depending on how the first creatures were, it could decrease the amount of mutations created. Just an idea I had to lead to new possibilities.
Monday, April 2, 2012
Recently I have learned a few theories dealing
with how dinosaurs became extinct and how life was created.
Some
people think dinosaurs became extinct due to other reasons than a meteor, some
think it was due to fall-out after a volcano erupted. I think it may have been
that dinosaurs over populated earth and fought for resources until they were
all dead.
I learned some theories on how life was created
and where it may have started too. A scientist created proteins which make up
life from various gasses and conditions that were around when earth first
became a planet. Then during the discovery of the hydrothermal vents people
realized the amount of new species that lived around it and how they did not
look like any other species. I think life began with a mixture of the theories.
I think the different species were made by the atmosphere it was in.
Tuesday, March 27, 2012
Evolution is an on going argument between church and science. It is how life changes over time for the better and is allowed to adapt to surroundings. The best evidence we have of this is from Charles Darwin. He studied wild life on Galapagos Islands. His theories were based off of natural selection.
I believe in evolution because of the little adaptations we make during our lives.
I believe in evolution because of the little adaptations we make during our lives.
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