Plants that live in shallow water have the same roles as plants on dry land. Describe the roles of plants like the ones shown below. Give an example of an interaction between one of the plants shown and another biotic element in the ecosystem.

the answer is d. chordata

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.