Answer to Question #117014 in Evolution for Juliette

Question

Where do evolutionists derive support for their theories?

Answer 1

Evolutionists refers to a person who believes in the theory of evolution. The theories of evolution include Charles Darwin theory of natural selection and the fossil record theory. Evolutionists finds the evidence of these theories from various sources which includes;

1)     Evolution reproduced in the laboratory.  

Some experiments were conducted in the laboratory by the scientists. The experiments gave the following results.

Two strains of fruit flies lost the ability to interbreed and produce fertile offspring in the lab over a 4-year span they later became two new species.

b. A new plant species was created by a doubling of the chromosome from the original one this experiment was conducted in 1967.

2. Fossil evidence.

The way fossils appear in the layers of rock always corresponds to relative development of more primitive creatures in older layers. Dating of fossils using radiometry resulted to constant discovery of new transitional forms like reptile-birds, reptile-mammals, legged whales.

3. Genetic evidence

The fact that humans have a huge number of genes in common with other great apes and with wheat plants. The pattern of genetic evidence follows the tell-tale patterns of more genes in common between recently related species, and fading the further back in time.

4. Molecular evidence.

These are commonalities in DNA which is separate from genetic commonalities and much of our DNA does not code for genes at all, random mutations enter into DNA at a known rate over the centuries. This is known as the 'molecular clock' and again gives perfect evidence of when humans diverged from other apes, and this relates perfectly with when these fossils first appear in the fossil record

5. Evidence from proteins.

 The specific proteins found in human color vision are the same as those found in great apes and the monkeys found in Africa and Asia (Old World primates).These proteins are absent in New World primates example South American monkeys and from all other mammals. Among the New World primates the howler monkey has color vision but these use slightly different proteins. This another evidence of a closer link between humans and the OW primates

6. Vestigial and atavistic organs

 Leg and pelvic bones in whales, dolphins, and some snakes are good examples of vestigial and atavistic organs which are unused eyes in blind cave fish, unused wings in birds that don’t fly and insects flowers in non-fertilizing plants.

In humans, wisdom teeth, tailbones, appendix are also good examples.

7) Embryology

Legs of dolphin embryos tails and gill folds on human embryos and snake embryos with legs marsupial eggshell is another evidence to justify that evolution exists.

8. Bio-geography.

This is the current and past distribution of species on the planet. Almost all marsupials and almost no placental mammals are native to Australia .This results in a geographically isolated area.

9. Homology

 Examples includes the same bones in the same relative positions in the primate hands, bat wings, bird wings, mammals, whale and penguin flippers, horse legs, the forelimbs of moles, and webbed amphibian legs.

10. Bacteriology, virology, immunology, pest-control

This shows how the bacteria evolve in response to antibiotic. A good example is comparing the strains of tuberculosis today, with samples of older or even viruses. Viruses like HIV respond to antivirals or how insects evolving in response to pesticides.