The most serious consequence of a decrease in global biodiversity ...

[penza]

The most serious consequence of a decrease in global biodiversity would be the
A) increase in global warming and thinning of the ozone layer.
B) potential loss of ecosystem services on which people depend.
C) increase in the abundance and diversity of edge-adapted species.
D) loss of source of genetic diversity to preserve endangered species.
E) loss of species for "bioprospecting."

[plus1]

I recall doing this last year, it's B, bye bye!

[penza]

Perfect, answer was correct