Plant decomposers would operate above the producer level. Two examples are earthworms and fungi. These would decompose dead plant matter into nutrients that are then re-assimilated by plants. Animal decomposers operate within the consumer levels, and would include species such as maggots, shrimp, clams, crabs, lobsters and flat<span>worms</span>. Nutrients recycled by these decomposers would also be recycled back to the producers.
Answer: C, D
Explanation:
All of the other examples aren't harmful, just different.
The reason why there is a green layer of algae was because
of the reason that there may be too much fertilizer applied in the lawn. When
having too much fertilizer, and it had been rained down—there could have been a
possibility of run-off to be flown down on the lawn of which has been sloped
and made its way on the pond. By this, it increases the nutrients in the pond,
making the algae to grow on it.
