Question

0 of 8 concepts completedfill in the blank questionas an ecosystem advances through the stages of secondary succession, species ____ in the ecosystem generally ____need help? review these concept resources.

Explanation:

Secondary succession occurs in an ecosystem that has been disturbed but retains soil and some organisms. As it progresses, early, fast-growing pioneer species are replaced by more competitive, longer-lived species, leading to an increase in species diversity and complexity over time.

Answer:

change; increase in diversity (or become more diverse)