All of These Would Be Considered Strictly Ecological Studies Except

Multiple Choice

All of these would be considered strictly ecological studies except

A) examining the winter diet of ducks.
B) examining the impact of sedimentation on coral reefs.
C) updating endangered species legislation pertaining to fish.
D) quantifying the level of competition between mussels and clams.
E) studying the impacts of temperature on overwinter survival of pine beetles.