Answer :
What is the question is it a fill in the blank multiple choice?
Answer:
producers typically enter a developing ecosystem before consumers.
Explanation:
Ecological succession is the process by which an ecosystem undergoes a series of changes as communities of organisms change their environment and new communities of organisms move in to the ecosystem. During the process of succession, producers typically enter a developing ecosystem before consumers. The producers modify the environment and makes it more suitable for the consumers.
(i had this on study island BTW)