Figure 7 shows two cubes. Cube X represents a bacterial cell. Cube Y represents a small multicellular organism. A bacterial cell can absorb all the nutrients it needs by diffusion through its outer surface. Explain why a multicellular organism cannot absorb all the nutrients it needs by diffusion through its outer surface. You must include calculations in your answer. Use Figure 7.

The answer is !

The activity series is shown in the attached picture. if the element is below the other, then you can displace the other. following the activity series as a guide, the reactions are as follows: nickel and aluminum chloride3 ni + 2 alcl₃  → 3 nicl₂ + 2 albarium and copper bromideba + cubr  →  no reaction because cu is less oxidizable than bapotassium nitrate and aluminum3 kno₃ + al  → al(no₃)₃ + 3 ksodium phosphate and zincnaso₄ + zn  → znso₄ + na

The metal is named first