In simple words, The grid plan, also known as the grid street design or stadium design, is a sort of city layout in which routes travel at perpendicular to one another to create a grid. The cost of infrastructure is often higher for regular grid layouts than for layouts with disconnected streets.
These plans are highly evident as they started right from the ancient france and Spain.
Answer: The fungi spores attach to the roots of the host and form networks of microscopic fibers called hyphae that form large networks that reach where roots cannot. The hyphae help the plant absorb water, mineral salts and nutrients for strong growth.