Which statement is true about ecosystems with complex food webs?
select one:
a) removing any species will make the ecosystem more fragile and/or collapse.
b) removing a species will make parts of the system more fragile but other parts more resilient.
c) the negative effects of removing a species from the ecosystem is the same for all species in the food web.
d) the negative effects of removing a species with many connections (for instance, a keystone species) is greater than those of removing a species with few connections.