Biology

The correct answer is: D.Moss.

Moss is a classic example of a pioneer species. It is one of the first organisms to colonize barren or disturbed environments, such as bare rock or areas where the soil has been removed. Mosses are hardy and can survive in harsh conditions with limited resources (like water and nutrients). Over time, mosses contribute to the formation of soil by breaking down rock and accumulating organic material, which paves the way for other species to establish themselves in the area.

Why the other options are less suitable as pioneer species:

A.Cactus: While cacti can survive in harsh, dry environments, they are not typically considered pioneer species. They usually require some soil and are more common in established ecosystems like deserts. <...