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in any food web, the organisms that are responsible for converting raw energy into usable chemical energy are collectively called while organisms that recycle the nutrients trapped in dead organisms are collectively called
a) producers; consumers.
b) producers; decomposers.
c) heterotrophs; consumers.
d) heterotrophs; autotrophs.

Option (B) is the correct answer.

Explanation:

Organisms which are able to convert raw energy into chemical energy are known as producers.

Producers are also able to prepare their own food.

For example, plants, some bacteria etc are producers.

Whereas decomposers eat or consume dead organisms and therefore, breaks them into simpler matter so, that they become recycled.

For example, fungi and bacteria are decomposers.

Thus, we can conclude that in any food web, the organisms that are responsible for converting raw energy into usable chemical energy are collectively called producers while organisms that recycle the nutrients trapped in dead organisms are collectively called decomposers.

you did not give any options thus this is the best answer i can give to you with this little information you have given

> they are both natural and not man made

> they can be tracked and predicted by the right tools

-love shrooms