Hello. You did not submit the text to which this question refers, which makes it impossible for it to be answered. However, I will try to help you as best I can.
It is only possible to answer your question if the text it is related to is read. As you did not provide the text, it is you who will need to do this reading. When you are reading, you will be able to identify the message that the chapter is trying to convey to the reader. This message will be the answer to your first question.
The message conveyed by the chapter represents the theme and the main idea of the text. In that case, to answer your second question, you will need to identify how this message relates to ethics and research.
