Question

Which type of ecological system experiences no input or output of energy or material?

Answer 1

The answer is...

Closed  ecosystems do not experience any new input or output of energy and/or material.

I hope this helps! :)

Answer 2

Answer:

Explanation:

I think that these people take to long to answer. I need an answer to it too. And fast! Whoever answers her question I will tell everyone to give a heart and 5 stars