The answer should be rectum.
This can affect the organisms living there because now, their environment is probably different than what they have been living in for a long time, so now they have to adapt to this new environment, and if they don't, the organisms will probably end up dying.
D. Chemical energy
The plant converts solar energy into food for the plants. doing this would be a chemical reaction. At the end of photosynthesis there would be chemical energy. :)
