Darwin reasoned that natural selection organisms had adapted to new environments, giving rise to new species. It is a principle of speciation.
<h3>Speciation, natural selection and environment</h3>
Different environmental pressures (e.g. the type of food) lead to different evolutionary pathways in genetically related organisms.
The organisms subject to different environments evolve as a consequence of natural selection in order to adapt (adjust) to their corresponding environments.
In consequence, this process may eventually lead to speciation due to the emergence of reproductive isolation barriers.
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Fracking collects natural gas that forms when organic matter is compressed under great temperature and pressure.
<h3>What is natural gas?</h3>
Natural gas is a mixture of gaseous hydrocarbons associated with petroleum deposits; mostly methane with smaller amounts of ethane, propane and butane; principally used as a fuel.
Natural gas is formed by the combination of compression and high temperature causing the carbon bonds in the organic matter to break down.
Therefore, it can be said that Fracking collects natural gas that forms when organic matter is compressed under great temperature and pressure.
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B. mitochondria and nucleus
The concept that organisms can only come from other organisms is called biogenesis.
The concept of biogenesis has to do with the belief that organisms cannot just arise spontaneously from non-living objects or sources, but can only arise from another living organism through the process of reproduction.
Biogenesis is as opposed to abiogenesis. The latter is a concept that opines that organisms can arise spontaneously from non-living sources without any reproduction.
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