Answer:
Oil and gas production are among the main culprits of air pollution – one of the world's biggest killers according to the United Nations. When fossil fuels are burned by power plants, automobiles and industrial facilities, they generate toxic gases.
1) Enzyme activity
2) Cell to cell recognition
3) Cell signalling
4) Transport Materials.
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For example the Burmese python were domesticated and then later became an invasive species
