is bladderwort a producer of a consumer. An animal that can't produce its own food and it eats plants and other animals. That is what a consumer is.
If it is; What is the purpose of a control in verifying a hypothesis or conducting an experiment, it is: Controls are needed to eliminate alternate explanations of experimental results. That is in order to test a particular variable you need a control. For e.g.
The goal of hypothesis testing is to determine the likelihood that a population. parameter, such as the mean, is likely to be true. In this section, we describe the four. steps of hypothesis testing that were briefly introduced in Section 8.1: Step 1: State the hypotheses.