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.
This is called fixed level testing (at the 0.05 level). 1  First: We state the hypothesis to be tested. The hypothesis being tested is called the null hypothesis and is denoted H0. 2  Second: We choose the level of significance at which the test will be performed. This is called the size or level of the test.