To calculate the efficiency of energy transfer between the harbor seal and the polar bear using the formula provided, you would use the following values:
- Energy level transferred to the next level (energy received by the polar bear): 375 Kcal
- Total energy input (energy contained in the harbor seal): 2500 Kcal
Next, we can plug these values into the formula:
\[ \text{Efficiency} = \left( \frac{375 \text{ Kcal}}{2500 \text{ Kcal}} \right) \times 100 \]
Calculating the fraction:
\[ \frac{375}{2500} = 0.15 \]
Now, multiply by 100 to get the efficiency percentage:
\[ 0.15 \times 100 = 15% \]
Therefore, the efficiency of energy transfer between the harbor seal and the polar bear is 15%.