In terms of community ecology, why are pathogens often more virulent now than in the past?
A) More new pathogens have recently evolved.
B) Host organisms have become more susceptible because of weakened immune systems.
C) Human activities are transporting pathogens into new habitats (or communities) at an unprecedented rate.
D) Medicines for treating pathogenic disease are in short supply.

Question

Quizplus · Accepted Answer

Human activities such as global travel, trade, and environmental changes are introducing pathogens to new environments and hosts, increasing their virulence and spread.

In Terms of Community Ecology, Why Are Pathogens Often More