Question

some students take care of a vegetable garden. when it is time to plant in the spring, the students leave part of the garden empty in order to observe ecological succession. which of these will most likely occur first? a) development of topsoil b) growth of weeds and grasses c) growth of trees and shrubs d) development of a stream

Explanation:

Ecological succession on previously cultivated garden soil (which already has some topsoil) begins with pioneer species. Weeds and grasses are fast-growing, hardy pioneer species that can quickly colonize empty, disturbed soil. Topsoil is already present in a former garden, trees/shrubs appear later in succession, and a stream is unrelated to primary/secondary succession in this context.

Answer:

B) Growth of weeds and grasses