The individuality of an organism is determined by the organism's

DNA base sequence

Explanation:

DNA is made up of nucleotide bases in pair of three generally termed as codons. There are 3 billion DNA sequence in a human being as per the human genome project.  These 3 billion sequences form more than 20000 genes. Almost all the human genes are similar in structure and arrangement up to a percentage of ninety nine percent. Only 1 % of the genes are different or varying. With this 1% gene, nearly millions of combinations can be formed which in a way is sufficient to make us unique.

is in the form atp or adenosine triphosphate

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.