4. Kleiber's Law states that the energy required per day, P kilocalories, for an

animal with mass M kilograms, is given by the formula P-70M*

a) Determine the energy required per day by a 1400 kg elephant. [3 MARKS]

b) Determine the energy required per day by a 0.043 kg mouse. [3 MARKS]

c) The energy required by a human is 2500 kcal per day. Determine its body mass.

Explain your strategy. [5 MARKS]