How does tobacco smoke effect the body? a. it blocks hemoglobin from binding to oxygen, thus affecting gas exchange in the lungs b. it paralyzes cilia in the trachea allowing inhaled particles to enter the lungs c. it causes an increase in heart rate and blood pressure d. all of the above

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.