This diagram shows two groups of plant cells, one with nitrogen-fixing bacteria and one without the bacteria Determine which is which and explain the size difference

answer: 20 percent

the fish culture has become a developing commercial practice in developing countries which is already prominent in developed countries of the world. the major fish protein demand is being supplemented in developing countries is   fishing to meet the needs of the growing population. therefore, in some developing nations, the percentage of animal protein from fish in the diet can be as high as 20 percent.

can i pls have the choices?