The right answer is A.
Plant species are particular in their ability to produce oxygen and carbohydrates through photosynthesis. The plant, just like the animals also needs to breathe so that these cells survive, so it is forced to take some of the oxygen and carbohydrate produced by photosynthesis to operate these cells through cellular respiration.
Normally a 10× drop for each trophic level, so I'd say 2,000 kilocal.
Answer:
Enter your immune systems it can also be in the ffood you eat
Explanation: