The process that produces oxygen
is the photosynthesis and when oxygen is released as the result of its production during
photosynthesis, it is a
by-product of splitting the water molecules. The reduction of oxygen which forms water occurs during
respiration.
True Dna is a specialized carbohydrate contained within cells.
A observation and hypothesis
I thinking like its 2,4,5
There are more than simply 4 biological compounds in the human body. I suppose to categorise, the question is hinting towards the molecules like Carbohydrates ( Poly and mono saccharides ) Proteins ( Polypeptides Made of amino acids) and Fats. There is also water, but I'm hesitant to class that as a biological compound, as it's not organic.