My cells have an organized nucleus. I am usually made of many cells but sometimes I can be single celled. I usually get my own food by decomposing other organisms. I can have one or two parents Who am I ?

The answer is fungi.

Explanation:

Fungi have an organized nucleus and are usually made up of more than one cell but fungus can be one cell as well, in which case it is called yeast. All fungi decompose organic material found in the environment to provide food for themselves.

I hope this answer helps.

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