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The “BR” provides the logic for your hypothesis and experimental approach, describing the biological mechanism and assumptions that explain why your hypothesis should be true.The biological rationale is based on your interpretation of the scientific literature, your personal observations, and the underlying assumptions you are making about how you think the system works.Now you have to articulate your hypothesis, which serves as your thesis statement.
Explain how you came to this idea by referencing the used sources.
This section provides guidelines on how to construct a solid introduction to a scientific paper including background information, study question, biological rationale, hypothesis, and general approach. This observation of the natural world may inspire you to investigate background literature or your observation could be based on previous research by others or your own pilot study.
The introduction serves a few different functions: it presents your topic, clarifies the context of the paper, attracts the attention of readers, and presents a thesis statement which will be explained and developed throughout the whole research. Explain what you’re going to focus on, and what questions you will answer.
The introduction also must grab attention and motivate your readers to keep reading.
(e.g., “No studies to date have examined whether guppies do indeed spend more time in shallow water.”): these questions are much more focused than the initial broad question, are specific to the knowledge gap identified, and can be addressed with data.
(e.g., “Do guppies spend different amounts of time in water : describes the purpose of your experiment distilling what is known and what is not known that defines the knowledge gap that you are addressing.
Not all science is easily applied to improving the human condition.
Performing an investigation just for the sake of adding to our scientific knowledge (“pure or basic science”) is just as important as applied science.
If the Introduction is done well, there should be no question in the reader’s mind why and on what basis you have posed a specific hypothesis.: based on an initial observation (e.g., “I see a lot of guppies close to the shore. Broad questions are not always included in your written text, but are essential for establishing the direction of your research.: key issues, concepts, terminology, and definitions needed to understand the biological rationale for the experiment.
It often includes a summary of findings from previous, relevant studies.