Answer:
He did better on biology test.
Explanation:
For comparing the scores we need to find z-scores for both subjects,
We know that,
z-score or standard score for x is,

Where,
is mean,
is standard deviation,
In history test,



Thus, the z-score would be,


In biology test,


,
Thus, the z-score would be,


∵

Hence, he did better on biology test.