I’m pretty sure it’s physical
Answer: Option C) leaves
Explanation:
Autotrophs including green plants consists of cells that have chloroplasts, these chloroplasts possess a green coloured pigment called chlorophyll that are abundant in the leaves, and helps in receiving trapping sun light among other simple inorganic molecules like atmospheric carbon dioxide and water, necessary for the synthesis of sugar molecules during the process of photosynthesis.
Thus, the abundant presence of chlorophyll in leaves makes photosynthesis occur more in leaves
I think two are stem cell research and cloning
