Answer:
Other living organisms.
Explanation:
When plankton and algae overgrow, they choke out living organisms such as fish, coral, etc,
The Neolithic Revolution.
This, meaning new age, is when plants and animals were domesticated and a new age had begun.
Hope this helps :)
The Gulf Steam
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Answer:
Your backyard is an ecosystem, Producers return nutrients to the soil, and The sun is the primary source of energy in an ecosystem.
Explanation:
this is the most common answers i could find
