A phyloGENETIC tree is not the same thing as a taxonomic tree, which is what Cal described. rRNA and molecular studies are used in phylogenetics to determine relations between species.
1 As the light intensity increases, the rate of photosynthesis increases. 2  However, the rate will not increase beyond a certain level of light intensity. 3  At high light intensities the rate becomes constant, even with further increases in light intensity, there are no increases in the rate.
If you continue to increase the intensity of light that a plant receives what happens?   As the light intensity increases, the rate of photosynthesis will increase and then level off no matter how much brighter the light gets. This is because another limitinâ¦g factor such as carbon dioxide or water level stops it.