the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.
The medium would be functionally classified as a growth medium. It is because a growth medium is a media that is being use to observe the growth of bacteria such as having to observe whether it would be inhibited or whether it will grow in the media.
Evolution is most likely to occur when catastrophic events alter community composition. Catastrophic global event can influence that only the hardiest, generalist species may survive. Specialists may be left without food and starve.