Imagine that you are an ecologist who must determine whether an entire
biome is being threatened by human activity. What might you look for in an
indicator species?
A. Will likely be affected first if any part of the ecosystems are
degraded
B. The species carved on rocks and other ancient bearers of art
C. A species of economic importance
D. The most well-known species, which is likely to be depicted on
money and postcards