2, the characteristics of students' papers should be specific, and the topic should not be too big. Because the basic knowledge is weak, the research depth is shallow. Biotechnology thesis is a summary of students' biotechnology activities, which is of great practical significance to expand students' knowledge field, cultivate their ability and develop their creativity.
The method of completing the topic of biological paper
How to complete the research topic after the topic of the thesis is determined? The following are some introductions.
(a) the survey method is to investigate the composition, quantity and distribution of a certain biological species in a certain area. For example, the species and quantity of insects to be removed have changed; Environmental treasures of various animals blow the modulation of climate change, and so on.
This kind of research can be carried out in ordinary primary and secondary schools with little money and without complicated instruments and equipment. However, the instructor should give appropriate guidance in advance, so that students and county magistrates can master certain knowledge of animal classification and make a fixed inspection plan in advance.
(2) Observation method: By carefully observing the individuals of a certain animal and plant, we can understand and master their living habits and the laws of growth and development. Pei must observe a certain number of objects, because it is too inevitable to observe only one individual, which will lead to the conclusion of the study. While observing, we should always pay attention to collecting physical data to make the evidence more complete and the effect better.
(3) Experimental method Under the condition that people change some environmental factors (such as nutrition, temperature, light, etc.). ), observe the influence of environment on organisms in a specific environment, and find out the prescribed research methods. Note: 1: There should be control group 2: There should be a certain number of subjects.
Example: "The effect of nutrition on the development of frog tadpoles".
In the experiment, natural water and static water were used as farmyard manure, and the two groups were used as control. During the experiment, in addition to different nutritional conditions, other conditions, such as the source, size, water temperature and illumination of tadpoles, should be given full attention to avoid other factors affecting the experiment. The above three methods are common in experimental research, and which one ends depends on the content and nature of the subject. But don't use that method, guide students to observe carefully, especially in the process of change, count and measure well, record it, and then draw a correct conclusion with statistics.