Just like a food chain, energy enters the food web at the trophic level of the producers, which can also be called autotrophs. In the desert, autotrophs are often some type of cactus, grass, or shrub.
The main purpose of the INTRODUCTION is to give a description of the problem that will be addressed. In this section the researcher might discuss the nature of the research, the purpose of the research, the significance of the research problem, and the research question(s) to be addressed. Three essential parts of a good introduction are: RATIONALE.
How to Write an Introduction. An effective introduction is vital to writing a well developed essay. An effective introduction allows for two basic things: grabbing the attention of the reader and letting the reader know what the essay will hold.n addition, refer back to the thesis of the essay. To better make your reader remember your thesis statement, restate your thesis with different words. Last, if necessary, issue a call for action during your conclusion because it is the final thing that your reader will remember. slide 5 of 5.