Amembrane that allows only some materials to move in and out of the cell is
o permeable
o semipermeable
origid
o bilayered

semipermeable

Explanation:

semipermeable membrane, such as plasma membrane, only allows only some materials such as oxygen—small material. other stuff like starch couldn't get in.

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.