The Most Serious Consequence of a Decrease in Global Biodiversity

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 sources of genetic diversity to preserve endangered species.
E) loss of species for use as crops.