Agroup of similar organism that can breed and produce fertile offspring

Only animals in the same species can always breed and have fertile offspring.

Although animals in the same genus can breed, their offspring are usually infertile.

your answer is rna to the question.

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.