Is the science of naming and classifying organisms based on structural comparisons and genetic evidence.

Taxonomy

Explanation:

The science that includes naming, describing, and classifying organisms is called taxonomy.  The early systems of classification of plants and other organisms were based on structural differences alone such as the early classification given by Linnaeus. However, morphological feature alone does not describe a species and the reproductive isolation makes the basis of most accepted biological species concept, therefore, the genetic evidences are also taken into consideration during the naming and classification of organisms.

a. the production of carbon dioxide through the process of photosynthesis