Abiotic factors like proper temperature and elements availability (oxygen) enabled life on Earth. Mutations, natural selection, and genetic flow lead to the evolution of species. All of them enabled diversity.
What enabled a greater diversity of life on Earth?
From the beginning, life on Earth is possible due to abiotic conditions. Proper temperature levels and basic elements availability, like oxygen availability, are necessary for aerobic organisms to survive and reproduce.
Life on the Earth is possible because of recycling processes. Everything on the Earth is recycled and reused. This is done through natural cycles that allow degradation of organic matter and transform it into new states that are used to produce new renewed matter.
Natural cycles are the natural processes in which the elements continuously circulate under varying forms in the air, water, soil, and organisms. As they circulate they are used to produce new matter.
Living and non-living things' production and free elements circulation depend on these cycles.
Biodiversity on Earth is due basically to genetic variations.
Genetic charges of different species are constantly changing, and this variation is what eventually might lead to speciation and species diversity increase.
Mutations are what produce genetic variation. If these mutations are beneficial for organisms, they are favored by natural selection and then spread by the genetic flow.
Organisms are exposed to different environmental pressures to which they need to adapt. If random mutations in their genetic material are beneficial for organisms to increase their fitness in these environments, they are favored and transmitted to descendants.
Mutations, natural selection, and genetic flow lead to the evolution of species.
Different species evolve and contribute to a greater diversity of environments, which means new pressures on different species to survive, and hence, new adaptations.
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