perfecxionX
10+ year member
CarAudio.com Veteran
How do you say the world was made?How does evolution happen?
Why is it taught?
Is there proof?
Ain't it stupid?
Spill it out...
These are actually all answers that are very accessible and thoroughly supported by 100+ years of scientific progress.
http://biology.clc.uc.edu/Courses/bio303/bigbang.htmHow do you say the world was made?
http://zebu.uoregon.edu/internet/l2.html
Is there proof?
Macroevolution has been supported by:- fossil records / transitional forms in the fossil records
- chronological nature of the fossil records / change in the distribution and frequency of types of organisms through geological time
- comparative embryology shows similar developmental stages for closely related organisms (e.g., all vertebrates)
- vestigial structures; have a function in other organisms/ancestors by the function is no longer necessary, yet the structure stays
- homologous structures - same bone structure found in the forearm of many vertebrates (just vary in size relationships of the bones)
- DNA of more closely related organisms are much more similar than less closely related organisms (from sibs, out to distance relatives out to members of a species, members of the genus, etc....)
- biogeography: organisms that are found in the same area are more similar to each other than to other individuals from distant places (all the marsupials on Australia!)
Direct evidence of evolution:
- bacterial resistance -- bacterial populations change in face of selection by antibiotics
- pests -- lots of evidence for pesitcides selecting for resistant individuals within a population and the pesticide becomes less and less affected over generations (the generation of the pests, not us).
- classic example on Darwin's finches showing microevolution of bill size change in response to drought (and back again) - across generations, not individuals (bill size is heritable)
- evo-devo: this is an area in science that is showing DRAMATICALLY that some changes during development can lead to dramatically different outcomes. For example, a small difference in the gene controlling foot development in birds: results in birds with webbed feet or birds with no web.
If you are unfamiliar with all of this then maybe you should start reading. Or at least not take opinions on things you know nothing about.
