Physical change only change the appearances of a substance, not it’s chemical composition. Chemical changes cause an entirely new substance with new chemical formula.
The resin why our brain changes throughout our life time as human beings, is simply because of age. Whatever you might learn, or adapt to it will all effect the brain. Everything you do is what your brain makes you do, and it changes with everything you do it all has a huge impact on your brain. Everything, its all about age and time. Hope this was helpful !!
The praying of one animal on others.
The factor that CITES fail to consider when determining which species to cover is the Ecosystem sustainability.
A sustainable ecosystem is a biological environment with a series of habitats that is able to thrive and also support itself without outside influence. it is the capacity of the biosphere to meet the needs of the present generation, without hindering future generations from being able to meet their needs.