The idea that some invasive grass species are ecosystem engi

The idea that some invasive grass species are ecosystem engineers, and successfully compete with native grasses has to do with: A. Accessing resources before other competing species B. Having a large seed bank to increase chances of overall germination C. Changing their environment to give them an advantage D. Seeds staying dormant for a longer period

Solution

question 2.

the idea that some invasive grass species are ecosystem engineers , and successfully compete with native grasses has to do with:

A. Accessing resources before other competing species. ( answer)

as per example , say like an invasive species may able to use resources that are previously unavailable to native species so it can access the resources when it comes in uninhabitated soil types. we can say it as non native species.