Answer:
A Carbon Dioxide ( CO2)
Explanation:
During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. ... Then, via respiration processes, cells use oxygen and glucose to synthesize energy-rich carrier molecules, such as ATP, and carbon dioxide is produced as a waste product.
It's differentiation however I'm not exactly 100%
Hopes this helps
Answer: phenylketonuria is caused by a deficiency of phenylalanine hydroxylase
Explanation: deficiency of Phenylalanine hydroxylase leads to inability of amino acid phenylalanine to be converted to amino acid Tyrosine. Deficiency of phenylalanine hydroxylase is caused by mutation in the genes that code for phenylalanine hydroxylase