How many ways are there to do biological experiment analysis questions?
There were the following methods to do biological experiment analysis questions: 1. If there are pictures and tables in the question, you need to combine the picture with the question table, and then look at the whole question before answering. 2. When answering questions, you must have a sense of scoring. 3. Answer the questions in a standard manner and pay attention to the use of biological terms. 4. For experimental analysis, one must first consider whether the material was correct, because the correct material was the first step to the success of the experiment. 5. From the analysis of drugs and reagents, many factors in the experiment process would affect the results. This analysis was very important. 6. The analysis followed the experimental design procedure, which was to clarify the purpose of the experiment → analyze the principle of the experiment → design the experiment → carry out the experiment → experiment results → draw a conclusion. Read more exciting novels for free
What are the methods of doing biological experiment analysis questions?
To do biological experiment analysis questions, one could start from the following aspects: 1. ** Combination Chart **: If there are pictures and tables in the question, you have to combine the picture with the question table, and then look at the whole question before answering. 2. ** Maintain a sense of scoring **: Clearly identify the points in the questions and aim for them when answering the questions. 3. ** Standard answer **: Pay attention to the use of biological terms. 4. ** Correct analysis of samples **: Correct sample collection is the first step to the success of the experiment. It is necessary to consider whether the experiment sample collection is correct. For example, in the experiment of "Observing the mitosis of plant cells", the root tip of the onion must be cut accurately. In the experiment of "Observing the plasmatic wall separation and recovery of plant cells", the sample collection should be from the deeper purple of the outer skin of the fresh onion scales. In the experiment of "Observing the exchange and absorption of mineral elements by the roots", the active roots must be cut. In the experiment of extraction and separation of the choroplasts, thick and colorful leaves were selected. 5. ** Drug and reagent analysis **: The influence of drugs and reagents on the experimental results should be considered during the experimental analysis. 6. ** Confirm the experiment design procedure **: Make the analysis according to the procedure of clear experiment purpose → analyze the experiment principle → design the experiment → conduct the experiment → experiment result → draw a conclusion. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What are the questions in the biological experiment operation exam?
Different regions had different biological experiment operation test items. For example, the biological experiment operation test in Xi'an had the following questions: - [Question 1: Observe the inner skin cells of onion scales and leaves using a microscope, glass slide, cover glass, tweezers, blade, dropper, gauze, clean water, blotting paper, onion scales and leaves, and iodine-based solution.] - Question 2: Observe the structure of the seeds. Use a magnifying glass, a blade, a dissecting needle, a dropper, a petri dish; soak the seeds of kidney beans (soybeans, broad beans, etc.) and corn seeds; and dilute iodine-based solution. - [Question 3: Observe a permanent smear of human blood using a microscope.] - [Question 4: Observe the structure of the lower surface of the leaf. Use a microscope, a glass slide, a cover glass, gauze, tweezers, a dropper, blotting paper, a blade, fresh spinach or broad bean leaves, and clean water.] - Question 5: Observe the permanent section of the leaf's cross-section. Use a microscope to make a permanent section of the leaf's cross-section. - Question 6: To verify the energy contained in food, use an assembled iron stand and its auxiliary structures, test tubes, thermometer, dissecting needles, alcohol lamps, matches, peanut seeds, water, etc. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The Development Direction of Biological Experiment
The development direction of biological experiments was as follows: 1. ** At the educational level ** - ** Teaching model innovation **: There are many problems in traditional biological experiment teaching, such as the low effectiveness of teaching methods under the exam-oriented education model, lack of interaction and inquiry. The future direction of development was to use virtual simulation technology to carry out changes. For example, the experimental courses constructed by virtual simulation technology were based on real-life data collection. A virtual experimental environment was created in the digital space, bringing an immersive and interacting teaching experience. It could present difficult to observe mechanisms and avoid problems such as high investment, high risk, difficult to grasp, and difficult to observe. - ** Course Design Revolution **: Course design based on innovative concepts such as MOOL (Massive Open Online Lab). Student-centered, gradual and comprehensive course difficulty. They would design a more scientific, comprehensive, and systematic assessment system so that teachers could teach according to their aptitude, control the teaching progress, and adjust the teaching strategy. At the same time, the concept of opening and sharing would be fully implemented. Students could break through the limitations of time and space to conduct fragmented learning and achieve multi-person collaboration. - ** Resource integration and optimization **: When integrating information technology with experimental teaching, information technology should be used to assist experimental teaching. Teachers should select appropriate experimental teaching resources according to teaching and experimental requirements, such as text description, animation simulation, video broadcast, software interaction, hand-held technology, and other resources to improve biological experimental teaching. 2. ** At the research level ** - ** Coordinated development with the biomedicine industry **: As a supporting service industry for the biomedicine research and development industry, the development of biomedicine animal experiments depends on the scale of the biomedicine industry. With the growth of the biomedicine industry driven by aging, increased health care expenditure, and increased investment in research and development, the experimental animal industry would also develop rapidly. For example, with the transformation of the pharmaceutical industry in China, the scale of independent research and development of drugs increased, and the demand for domestic experimental animal products and services continued to increase. - ** Pay attention to the effective use of experimental animals **: In the use of experimental animals, different experimental animals have different uses in biomedicine research. For example, the experimental monkeys in experimental non-human primates were mainly used for preclinic safety research of innovative drugs. In the future, the selection and utilization of experimental animals would be more precise and efficient to meet the needs of pharmaceutical research. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Human Biological Reactivity Experiment Report
The following is an example of a human biological reaction experiment report: ** 1. Purpose of the experiment ** The purpose of this experiment was to measure the human body's reaction time, which was the time from receiving a stimulus to reacting. ** 2. Experiment Principle ** The human body's reaction time involved the time needed for nerve transmission, perception, judgment, and reaction after receiving a stimulus. This experiment used the visual reaction time measurement method. After the experimenter received the visual stimulus, he quickly made a response such as pressing a button or raising his hand. The reaction time was calculated by recording the time difference between the appearance of the stimulus and the reaction. ** 3. Experimental Materials and Instruments ** 1. ** Computer **: Used to run the reaction time measurement software. 2. ** Reaction Time Measuring Software **: A program specially used to measure reaction time. 3. ** Timekeeper **: Assist in recording the time. 4. [** button **: A tool for the experimenter to react.] 5. ** Experimenter **: The person who provided the reaction sample. ** 4. Experimental Steps ** 1. He installed the reaction time measurement software on the computer and opened it. 2. He arranged for the participants to sit in front of the computer and placed the button in a position that was easy for the experimenter to reach. 3. The experimenter stared at the screen. When the black square on the screen turned red, he immediately pressed the button. 4. Record the time difference from the square changing color (the stimulus appears) to pressing the button (the reaction occurs). This is the reaction time. 5. Repeat the above steps many times, and finally take the average as the experimental result. ** 5. Experimental results and analysis ** Assuming that there are 10 participants, each of whom carries out five experiments, the results might be as shown in the following table (here is the sample data): |participant| Reaction Time 1| Reaction Time 2| Reaction Time 3| Reaction Time: 4| Reaction Time: 5| Average reaction time| |------|-------|-------|-------|-------|-------|-----------| |1|0.25s|0.23s|0.24s|0.22s|0.26s|0.24s| |2|0.28s|0.26s|0.27s|0.25s|0.29s|0.27s| |...|...|...|...|...|...|...| |10|0.24s|0.23s|0.25s|0.22s|0.27s|0.242s| Analysis: From the results, it can be seen that there are certain differences in the reaction time of different participants. This could be influenced by many factors, such as the individual's nervous system reaction speed, concentration, fatigue, and so on. ** 6. Experiment conclusion ** Through this experiment, we can measure the human visual reaction time, and there are differences in reaction time between individuals. This difference may be caused by a variety of physiological and psychological factors. ** VII. Experience from the experiment ** During the process of conducting human biological reaction experiments, it was necessary to precisely control the experimental conditions to ensure that the participants understood the experimental requirements and remained focused. At the same time, it was important to repeat the experiment many times to obtain enough data to obtain reliable results. In addition, they should also consider how to further improve the experimental design to reduce errors, such as improving the experimental environment to reduce external interference. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Ten biology experiment questions with answers
Below are the answers to the ten biology experiment questions: ** 1. Experiment related to making onion scales and leaf cuticular cells into temporary slices ** 1. ** Title * There were several steps to make the onion scale leaf skin cells into temporary films: 1. Dripping water; 2. Taking materials; 3. Covering the cover glass; 4. Dyeing; 5. Flatting with tweezers. Please write down the correct sequence of operation and explain what liquid was used for dripping water and dyeing. ** Answer ** The correct order was: 1. Drip water, 2. Take samples, 5. flatten with tweezers, 3. Cover the glass, 4. Stain. The dripping of water was to maintain the normal shape of the cells, and the liquid used for dyeing was an iodine-based solution. The iodine-based solution could dye the nucleus and other structures with color for easy observation. 2. ** Title * What was the correct way to cover the cover glass when making the onion scale leaf skin cells? If air bubbles appeared under the cover glass, what effect would it have on the observation? ** Answer ** The correct way to cover the cover glass was to use tweezers to pick up the cover glass, so that one side of it first touched the drop on the slide, and then slowly lay it flat. If air bubbles appeared under the cover glass, the air bubbles would interfere with the observation of the cell structure. Because the air bubbles looked like black circles under the microscope, they might be mistaken for cell structures. 3. ** Title * When he was making the onion scale leaf skin cells, if there were overlapping cells in his field of vision, which step might have been handled incorrectly? ** Answer ** If the cells in the field of vision overlapped, it might be due to the improper operation of flattening the onion scales with tweezers after the sample was taken. 4. ** Title * When observing the onion scale leaf cuticular cells under the microscope, it was found that the field of vision was relatively dark. How to adjust the microscope to make the field of vision brighter? ** Answer ** You can adjust the shutter to choose a larger aperture, or adjust the mirror to use a concave mirror. Both methods could increase the amount of light entering the microscope, thus brightening the field of view. ** 2. Experiment on cell structure and function ** 5. ** Title * In the experiment to observe the cell structure, how to distinguish between plant cells and animal cells? (Write at least three points) ** Answer ** (1) Plant cells have cell walls, but animal cells do not. (2) Plant cells have plastids (green cells), but animal cells do not have plastids. (3) Plant cells have large vesicles, but animal cells generally do not have large vesicles (some lower animal cells have small vesicles, but they are different from plant cells). 6. ** Title * In the experiment to explore the cell is the basic unit of biological structure and function, some examples of different biological cells with different forms and functions were given. ** Answer ** For example, onion skin cells were flat and tightly arranged, mainly for protection. Red blood cells in human blood were spherical, with thick edges and slightly concave in the middle. They had no nucleus, and their main function was to transport oxygen and carbon dioxide. Human nerve cells were divided into two parts, the cell body and the projections. The cell body was hexagonal, and the projections were intertwined like tree roots. Their main function was to receive and transmit information. ** 3. Exploring the environmental factors that affect the survival of living things ** 7. ** Title * Design an experiment to explore the effect of temperature on the life of the rat woman. (Write down the experimental steps, variables, and expected results) ** Answer ** Experimental steps: (1) Prepare a paper box and lay a layer of wet soil inside. (2) Divide the paper box into two parts. One side is shielded with black cloth to form a dark environment, and the other side is not shielded. (3) Put the same number of rat women (such as 10) on both sides of the carton. (4) Place the carton in an environment with different temperatures, such as 10 ° C on one side and 25 ° C on the other side. The variable was temperature. Anticipated result: In an environment with a suitable temperature (e.g. 25 ° C), the activity of the rat wives is more frequent and the number is more; in an environment with a low temperature (e.g. 10 ° C), the activity of the rat wives is less and the number may be reduced. 8. ** Title * What were the experimental variables in an experiment to explore the effect of light on the sprouting of a plant seed? If he wanted to ensure the accuracy of the experimental results, what problems should he pay attention to in the experimental design? ** Answer ** The experimental variable was light. In order to ensure the accuracy of the experimental results, the following issues needed to be noted: (1) The number of seeds must not be too small, and a sufficient sample size must be ensured. (2) Other than the variable of light, other conditions such as temperature, moisture, air, seed type, and fullness must be maintained. (3) Set up a control group and an experimental group. The control group was under normal light or no light (according to the experimental design), while the experimental group changed the lighting conditions. ** 4. Experiment on plant photosynthesis ** 9. ** Title * In the experiment to verify that green leaves could produce organic matter under light, what was the purpose of putting potted geraniums in the dark for a day and night? What was the purpose of covering a part of the leaf from top to bottom with black paper? ** Answer ** The purpose of placing the potted geraniums in the dark for a day and night was to remove or exhaust the original starch in the leaves to prevent the original starch from interfering with the experimental results. The purpose of covering a part of the leaf from top to bottom with black paper was to form a comparison experiment with and without light, so that he could explore the indispensable conditions for green leaves to produce organic matter. 10. ** Title * In the experiment to explore the oxygen produced by photosynthesis, how was the oxygen collected and tested? ** Answer ** One could collect oxygen using the drainage method. Put a green plant (such as hornfish) in a large beaker filled with clear water, cover the plant with a funnel, and then turn a test tube filled with water upside down on the funnel. After shining it under light for a period of time, oxygen would be collected in the test tube. The way to test for oxygen was to put a piece of wood with sparks into the collected gas. If the wood reignited, it proved that the gas was oxygen. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Human anatomy experiment in the American biological laboratory
There was a lot of evidence that the American biological laboratory involved human experiments, and there might even be human anatomy experiments. Russia revealed that the United States was conducting live research on Ukraine people in the Ukraine biological laboratory, and that the United States had obtained more than 8000 pathological specimens for live human experiments and dissection using bacteria weapons. The former director of the National Security Agency of Georgians also revealed that the United States had conducted a number of experiments, including human experiments, at the Lugar laboratory in the suburbs of Tbilisi, the capital of Georgians. There were also documents showing that the experiments had caused many deaths. In addition, there were many inhumane human experiments in the United States. In the 1960s, the CIA secretly funded a decades-long human experiment in which 311 Dutch children were used as test subjects for schizophrenia research without their knowledge. The plan used drugs to experiment on different groups of people, including ordinary people, mental patients, prisoners, prostitutes, drug users, and even used "brothels" to lure others to drug them. They also mixed LSD into alcohol and cigarettes to observe the victims. They did not let go of their own people. In addition to LSD, the CIB also tried other drugs and learned from the nazis. They set up secret detention centers overseas to conduct more extreme experiments, such as electric shocks, extreme temperatures, and sensory deprivations. After World War II, the United States recruited a large number of biochemical weapons experts from Germany and Japan, including members of Unit 731. They also obtained more than 8000 pathological specimens of Unit 731's live human experiments and dissections. All of these showed that the United States was suspected of seriously violating ethics and ethics in biological experiments, and might even involve illegal human anatomy experiments. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Biological medicine and its process experiment report
The following is the general framework of a biological medicine and its process experiment report: ** I. Introduction ** Biomedicine occupied an important position in the field of modern medicine. The purpose of this experiment was to explore the related processes of biomedicine to deepen the understanding of the manufacturing process and principles of biomedicine. ** 2. Experiment Purpose ** 1. For specific steps in the production process of biological drugs, such as fermentation and coupling-reaction, determine critical process parameters (CPPs) and non-critical process parameters (Non-CPPs). 2. Investigate the acceptable range of key process parameters to ensure that the key quality attributes of the biological medicine are within the acceptable range. ** 3. Experiment Materials and Methods ** (I) Materials 1. The source and purity of the raw materials of the biological medicine (such as the microorganisms, the substances, etc.) should be specified in detail. 2. Experimental equipment, such as a fully automatic mechanical stirring stainless steel seed tank (50L), its functional principle, main components, and operation process should be introduced. (2) Method 1. fermentation process - Operation of the seed tank - According to the principle of the seed tank, prepare a suitable medium (containing components that are easily used by the bacteria such as glucose, corn steep liquor, and phosphorus). - adjust environmental conditions, such as temperature, pH value, etc., to meet the growth needs of microorganisms. - Control the air supply, ensure that there is enough sterile air for the aerobic bacteria, and mix the air and the fermentation broth through a mechanical stirring device to promote the dissolution of oxygen. - Use a suitable feeding method (such as semi-continuous feeding) and pay attention to the sterilization operation of the air entrance, sample port and tank mouth. - monitoring and recording - Regular samples were taken to test the growth state of the microorganisms (such as the concentration of bacteria, growth curve, etc.). - The key indicators in the broth were analyzed, such as the concentration of the product and the formation of by-products. 2. process characterization experiments - Research on key process parameters - single factor experiment - Choose specific process parameters (such as the feed ratio in the couple reaction) and set different levels (for example, three levels). - In each experiment, only the level of this process parameters was changed, and the other process parameters remained unchanged. - The experiment results were analyzed by the analysis of variation or the analysis of regressions to determine the degree of influence of the process parameters on the quality attributes of the biological medicine, and to determine its criticality and acceptable range. - Multivariate Design of Experiment (DoE) - The DoE method was used when the effects of multiple process parameters on quality attributes needed to be studied simultaneously. - Through the reasonable design of experimental combinations, the interaction between process parameters on the quality of biological medicine was studied. ** 4. Experiment result ** 1. fermentation results - Show the growth curve of the microorganisms in the seed tank, including the characteristics of different stages (such as lag phase, exponential growth phase, stable phase, etc.). - The production curve of the product in the fermentation process was given, and the fermentation efficiency and yield were analyzed. 2. Results of the process characterisation - Single factor experiment results - List the changes in the quality attributes of the biological medicine under different levels of the process parameters studied. - According to the results of the analysis of variation or the analysis of the regressions, the significance of the key process parameters and their effects on the quality attributes should be determined. - Multivariate Experimental Results - Demonstrate the change law of the quality attributes of the biological medicine under the interaction of multiple process parameters. - To determine the combination of key process parameters and their overall impact on the quality attributes. ** 5. Discussion ** 1. The experimental results were analyzed to explain the mechanism of the key process parameters affecting the quality of the biological medicine. 2. Comparing the results of single-factor experiment and multi-variable experiment, the advantages and disadvantages of different experimental methods were discussed. 3. According to the experimental results, suggestions for improving the production process of the biological medicine were proposed, such as the optimization of the control range of key process parameters. ** 6. conclusion ** The main findings of the experiment were summarized, including the key process parameters and their acceptable ranges, the overall understanding of the production process of the biological medicine, and the prospects for future research directions. Please note that the above report framework is only a general example. The specific content needs to be filled in and adjusted according to the actual experiment content. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Experience in the biological experiment of anti-tumor materials
In the process of conducting biological experiments on anti-tumor materials, he had the following experiences: ** 1. Experimental Skills ** 1. ** Cell Manipulation Skill ** - Cell cultivation was the basic and crucial step. The cultivation conditions, such as temperature, humidity, and carbon dioxide concentration, needed to be precisely controlled to maintain the growth of the tumor cells. For example, different tumor cell lines may have different requirements for culture conditions, and any slight deviation may affect the growth rate and state of the cells. - During the process of processing the medicine, one had to accurately grasp the concentration of the medicine and the time of effect. In anti-tumor experiments, the concentration of the drug would directly affect the inhibition effect on tumor cells. If it was too high, it might cause excessive cell death and affect the accurate judgment of the experimental results. If it was too low, it might not reflect the anti-tumor activity of the drug. - Cell counting was also an important skill. An accurate cell count could help to accurately assess the growth of tumor cells under different experimental conditions. For example, the change in cell number before and after drug treatment was one of the important indicators to measure the efficacy of drugs. 2. ** Data processing skill ** - It was necessary to learn how to use relevant software to record, organize, and analyze data. In an anti-tumor experiment, a large amount of data would be generated, such as the number of tumor cells treated with different concentration of anti-tumor drugs, the changes in their shape, and so on. Reasonably organizing and analyzing these data could provide strong support for the experimental conclusion. For example, through the analysis of statistics, it was possible to determine the significant difference in the growth inhibition rate of the drug on tumor cells. ** 2. Experimental Materials ** 1. ** Material Selection ** - The choice of reagents and consumables was crucial. Choosing more stable and reliable reagents and consumables could improve the accuracy and reliability of the experiment. For example, when detecting the activity of tumor cells, the use of poor quality reagents may cause the test results to be inaccurate, thus affecting the judgment of the state of the tumor cells. 2. ** Material optimization ** - For experimental materials such as tumor cell lines, their vitality and purity must be ensured. For example, when using tumor cell lines, the purchased tumor lines could not be simply revived or used for experiments after passing through one generation. It was recommended to pass through at least two generations in animals to make the tumor cell vitality fully reflected before starting the experiment. This could improve the reliability of the experimental results. ** 3. Experiment plan ** 1. ** Experiment deficiencies and improvements ** - There may be various problems during the experiment, such as cell contamination. During the tumor cell culture process, bacteria, fungi, and other contamination may interfere with the experimental results. In order to solve these problems, he needed to constantly improve the experiment plans and methods. For example, improving the operation process of cell culture and strengthening the awareness of sterile operation to reduce the risk of cell contamination. - If there were problems in the establishment of animal models in the experiment (if it involved animal experiments), adjustments would be made. For example, when selecting an animal model, the appropriate animal should be selected according to the experimental needs and the type of tumor. Different animals may have different reactions to tumor cells, and improper selection may affect the validity of the experimental results. 2. ** Multi-factor considerations ** - When designing an experiment plan, many factors had to be considered. For example, when studying the effect of anti-tumor materials, not only should they pay attention to the direct effect of the materials on tumor cells, but they should also consider factors such as the tumor microenvironment, the drug resistance of the tumor cells, and the tumor's metastasizing characteristics. These factors were interconnected and might have a complex impact on the experimental results. Therefore, the relevant factors should be covered as comprehensively as possible during the experimental design in order to more accurately evaluate the performance of the anti-tumor materials. ** 4. Teamwork ** - During the entire experiment, the cooperation and communication between team members were very important. Different members might be responsible for different experimental links. For example, some members were responsible for cell culture, while others were responsible for drug processing and data collection. Good teamwork could ensure the smooth progress of experiments and improve the efficiency of experiments. They could also brainstorm and find solutions together when they encountered problems. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The Skills to Solve Junior Biology Experiment Questions
Junior high school biology experiment questions solving skills are as follows: 1. ** Carefully review the questions ** - Accurately excavate the known conditions and analyze their implications. Find the known information in the questions in an all-round way. When examining the questions, be stable, accurate, and slow. Fully excavate the useful information for solving the questions. Pay special attention to the key and restricted words to avoid the blindness of solving the questions. - For questions that required an "incorrect" or "wrong" choice, mark the negative statement to remind yourself when answering and checking. 2. ** Focus on the situation ** - When doing situation questions, the answers not only had to conform to biological principles, but also to the reality of life and production. 3. ** Organizing your answer ** - Only by clearly understanding the knowledge points could the answers be accurate. - He had to consider the problem from many angles to ensure that the answer was comprehensive. - The answer was concise, clear, logical, and rigorous. - Give priority to using the original sentence in the textbook to answer; when the textbook is not available, carefully organize the language, pay attention to the completeness of the words, avoid "not expressing the meaning" or "answering the question", and read it again after writing to ensure that it is scientific. 4. ** Search for teaching materials ** - According to the knowledge points of the questions, they searched for relevant content in the teaching materials. Although the background of many information questions was new, the knowledge points of the questions were based on the teaching materials. They had to use the keywords in the questions to transform into the knowledge of the teaching materials to solve the questions. 5. ** Experiment Design Questions ** - The soul of the experimental questions was the experimental principle. One had to deeply understand the experimental principle, accurately find the single variable of the experiment, and accurately design the experiment according to the single variable principle, the comparison principle, and the equivalent principle. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
How to write an interesting 200-word biological experiment essay
" Interesting Biological Experiment " In biology class, we conducted an experiment to explore the cell structure of the onion's scale leaf. When I entered the laboratory, I was a little flustered when I saw the unfamiliar equipment. However, I flipped open the biology book and started after setting the steps. I carefully cut, sliced, and selected the onions. I choked on the onion juice and cried, but I still caught up with the other students. Finally, when he observed them under a microscope, the cells were black, white, and transparent. They looked like rock walls, water ripples, and patterns that crossed, stretched, and extended in a regular pattern. They were in different shapes and were extremely interesting. This experiment made me understand that although biological experiments need to be precise, the fun of exploration is endless. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>