The 10 Percent Ecological Efficiency Rule of Thumb Has Implications

Multiple Choice

The 10 percent ecological efficiency rule of thumb has implications for humans in what way?

A) The 10 percent rule can instruct humans as to which systems need the most protection.
B) Understanding the 10 percent rule might protect species from extinction.
C) Recognizing the 10 percent efficiency rule may provide insight into future human diets on an increasingly populated planet.
D) The 10 percent ecological efficiency rule points to the open ocean as a means to increase worldwide food production.