Answer:
A) 3%
Explanation:
Given;
total energy consumed by the porcupine, [tex]E_t[/tex] = 3,000 J
energy eliminated as feces = indigestible plant energy, = 2,100 J
internal energy for cellular respiration = 800 J
energy used by the animal for growth and reproduction = production energy of the animal = Â 100J
The approximate production efficiency of this animal is calculated as;
[tex]E_n = \frac{100 \ J}{3,000 \J} \times 100 \%\\\\E_n = 3.33 \%\\\\E_n \approx \ 3\%[/tex]
Therefore, the approximate production efficiency of this animal is 3 %