in order for cells to carry out the functions needed to sustain life, which of the following must be present in the cell? a cell wall b nucleus c dna and or rna or d flagella which of the following must be present in the cell? a cell wall b nucleus c dna and or rna or d flagella

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.