Answer:
the null hypothesis is that ''there is no significant relationship between elongation rate and Amanitin chemical''.
Explanation:
Null hypothesis is a type of statement which shows no significant difference between two variables or factors in the hypothesis. Hypothesis is a statement which is proposed by the scientist which may be true or false. First the scientist says that there is no difference occurs in the substance by the use of some chemicals but if significant change occurs in the substance so the null hypothesis is rejected . But if these is no significant change occurs so the null hypothesis is accepted by the scientist.