How did the occurrences of the different traits change over the 30-year period? use
evidence from the graph to support your answer. using what you know about natural selection
and adaptation, what generalization can you make based on these changes?

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.

answer; cnidarians;