Answer C, <span>DNA and RNA
</span>
Answer:
Photosynthesis
Explanation:
"Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct." - Dictionary
Each chromosome has 2 chromatids so 2*6=C.12 chromatids
There are many conservation issues, desertification, erosion, ecocide, coral reefs, biodiversity threats and losses defaunation etc.
