How does the success of an invasive species depend on its placement in its new food web?

They thrive in a new food web because of species interactions that are not fully developed. Invasive species thrive due to limited competition and lack of a natural predator. This way, they are able to increase their numbers exponentially hence affecting the balance of the ecosystem.

answer; i believe the answer is (polygenic inheritance;

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.