Light is the energy source in Photosynthesis!
Hope this helped!
Increasing the light intensity increases the rate of photosynthesis, until some other factor - a limiting factor - becomes in short supply. At very high light intensities, photosynthesis is slowed and then inhibited, but these light intensities do not occur in nature.
The benefit to a society if everyone reduces the amount of meat they eat is that it will help the nutrient cycle. It could also reduce the amount of nitrogen going to the environment. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.
First it's can not be biosynthesis because it is taking in food molecules means it cannot synthesisi its food
Second nutrition is the process to take nutrients
Third absorption means to absorb but here cell does phagocytosis and pinocytosis
Forth digestion obviously when an organism eats something it have to digest it and it it is its capability.... and so far as I think Digestion should Ben your answer!
C. An increase in human population