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.
Sensory Analysis. Hypothesis. hypothesis = tentative assumption to test. logical or empirical consequences of. applying a variable in a research project. null hypothesis = statement that applying a. research variable will not make a significant. difference in a research project.