Variability Paratypic

Paratypic variability --------------

Dependence of individual variability on environmental factors controlled by the experimenter. But the term allows for “legalized” arbitrariness in relation to the conditions of upbringing and keeping of birds or animals at birth, their physiological state before the experiment, repetition of the experiment, etc., since in variation statistics there is not enough a definite concept of the influence of certain factors of inheritance