Question

who is called secretors in 12 biology ​

Answer 1

Explanation:

In simple terms, a person is said to be a secretor if he or she secretes their blood type antigens into their body fluids like the saliva, the mucus

Answer 2

$\begin{gathered}\begin{array}{l|l}2 & 0 \\ \hline 2 & \infty \\ \hline 2 & 40 \end{array}\end{gathered}$