Answer:
The correct answer will be-dependent variable.
Step-by-step explanation:
The scientific experiments are performed to study the variables which are of two types: independent variables and dependent variables.
The independent variables are the variables which can be controlled and changed and the variable to be studied is known as the dependent variable.
In the given experiment to study the prediction of Charles Darwin the experimental groups were divided to study the number of seeds produced. Nets were used to prevent the pollination by long mouth tube pollinators and allowed short mouth tube pollinators.
Since the number of seeds produced was studied will be known as the dependent variable and hence is the correct answer.