In a species of ant, dead individuals are usually consumed by the other ants. A fungal pathogen is introduced into this species; it produces fungal spores within the host but they are not secreted by living ants or passed on to offspring. At introduction, the pathogen kills 10% of infected ants. How would you expect the virulence of the pathogen to evolve? Virulence will decline to zero. Virulence will stay the same. Virulence is expected to increase.

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Terrestrial Ecosystem

An ecosystem is a collection of interconnected communities. It includes both living and non-living elements of specific strata. The terrestrial ecosystem is solely related to the ecosystem present on the land and covers 25 to 30% of the total earth’s surface area.