The following are some examples of questions and answers related to junior high school biology research: * * I. Research on the effects of alcoholism on the human body ** 1. [Question: How does alcohol affect the nervous system?] - Alcohol can seriously damage a person's nervous system. The central nervous system includes the brain and spinal cord, and the brain is composed of the cerebrum, cerebrum, and brainstem. When drinking too much, alcohol would poison the cerebrum, causing damage to the cerebrum's ability to maintain body balance and accurate coordination of movements, resulting in instability in walking. Alcohol would poison the language center of the cerebral hemisphere, causing speech to be unclear. It would poison the visual center, causing hallucinations. In severe cases, the entire nerve center would be poisoned, causing confusion, loss of consciousness, and lethargy. For example, when studying the effects of alcohol on the driver, there might be a loss of coordination and accuracy of hand and foot movements, which might be caused by alcohol anesthetizing the cerebrum. 2. [Question: How does alcohol affect the heart rate of the water fleas?] - * * Explanation of the answer **: Assuming that the alcohol concentration has an effect on the heart rate of the water fleas, the experimental variable is the alcohol concentration. In the experiment, as the volume fraction of alcohol increased, for example, when the volume fraction of alcohol was 5%, 10%, 15%, and 20%, the corresponding heart rate of the Daphnia was 24, 21, 17, and 0 (death) respectively, indicating that the heart rate of the Daphnia gradually decreased until death. This also meant that alcohol abuse would cause the central nervous system to be overly excited, causing alcoholism. Alcohol abuse in pregnant women could also cause fetal development disorder or low intelligence, and even cause fetal deformities. At the same time, in order to show the effect of alcohol, a control group with only water and no alcohol should be added to the experimental design. * * 2. Research on the biological effects of smoking ** 1. [Question: What is the effect of smoking on the health of mice?] - * * Explanation of the answer **: In the experiment to explore the effects of smoking on the health of mice, if the number of mice in each group is too small (such as only a few), the result is too accidental and not scientific and convincing. After the improvement, if the mice in Group A were normal, the mice in Group B would have bloodshot eyes, red and swollen eyes, abnormal activities, and finally spasm and shock after being exposed to smoking-related substances (simulated smoking environment, etc.). Through comparison, it could be concluded that smoking was harmful to health. 2. [Question: Which systems do the harmful substances produced by smoking harm?] - There are more than 40 kinds of cancer-causing substances in the smoke produced by smoking, as well as more than ten kinds of substances that promote the development of cancer. Among them, the most harmful ones are Nicotine, carbon dioxide, tar, and many other metal compounds. These toxic substances first entered the human body's respiratory system directly, causing respiratory diseases such as tracheitis, rheumatism, pneumonias, and lung cancer. Furthermore, not only did smoking endanger their own health, but it also seriously affected the health of others. It was more harmful to others than to themselves. * * 3. Exploration on the application of fermentation in biology ** 1. [Question: In the process of producing fuel alcohol from corn stalks, what kind of bacteria is needed to produce alcohol from sugar liquid?] - * * Explanation of the answer **: The fermentation of microorganisms plays an important role in food production and other aspects. In the general process of producing fuel alcohol from corn stalks, the bacteria needed for the stage from sugar liquid to alcohol is yeast. Yeast can decompose glucose to produce alcohol and carbon dioxide in the absence of oxygen. * * 4. Exploration on visual formation ** 1. [Question: When the light from the red light enters the eyeball to form an image, what is the order in which the light enters the eyeball?] - * * Explanation of the answer **: The order in which light enters the eyeball is: corneas, pupil, crystalline lens, vitreal body, retina. The photosensory cells in the retina received the stimulation of the image and converted the image information into nerve impulses, which were then transmitted through the optical nerve to the visual center of the cerebral hemisphere to form vision. When a driver stopped at a red light, the cerebral hemisphere was involved in this process, which was a complex reflex. Read more exciting novels for free
The following is some of the plot related to the Jade Emperor: - In some fantasy novels, the Jade Emperor might run dungeons. For example, in the settings related to the primeval era, after Pangu created the world, his dragon soul turned into Yin Yang Boy. After the Azure Yang Boy broke through to the Jade Emperor, he might participate in various adventures. - In some stories, the Jade Emperor participated in the debate and competition of mythological characters, such as competing with God for the recognition of ruling the three worlds. In this process, there were many debates and interactions to show the image of the Jade Emperor. - There were also some stories that involved power struggles and corruption within the Heavenly Court. The Jade Emperor was the main character in the story of the Heavenly Court's officialdom. For example, the Jade Emperor was corrupt and degenerated, and he appointed and dismissed the God of Wealth in the Heavenly Court to promote the development of the story. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Romance of the Three Kingdoms was a classic novel about Liu Bei, Guan Yu, and Zhang Fei becoming sworn brothers. In this novel, it described in detail the story of the three people becoming sworn brothers and the story of them fighting for the world together. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Here are some steps for a first grader to draw a police car: 1. First, he drew the frame of the police car and left space for the tires at suitable locations. 2. Then, he drew the lights on the front and back of the police car, and then perfected the details of the car. 3. Then, he drew two tires. 4. Then he drew the alarm on top and drew a few short lines to indicate the flashing lights. 5. Finally, he painted it in a beautiful color. Or you could draw it according to the steps: 1. To draw the head, first draw the outline of the head and the brim of the hat. 2. He drew a police cap. The outline of the cap was like a triangle. 3. He drew the facial features, such as bright eyes, eyebrows, nose, and mouth. 4. Drawing the police uniform required patience due to the large number of lines. He could also draw the tie and the collar of the shirt. 5. The police department mainly used blue and flesh colors (marker number 29, you can also choose a watercolor pen or colored pencil). In addition, in terms of composition, the police car could be summarized as a square and a rectangular, and then gradually add windows, mirrors, license plates, headlights, tires, and so on. During the styling process, he could also demonstrate how to draw the eyes with different expressions. If he used an oil painting stick to paint, he had to pay attention to the reflection of the glass and the projection under the wheels. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
1. Why do you need light green and deep red? It's the best among the flowers. 2. People idle osmanthus fall, night quiet spring mountain empty. 3. Osmanthus flowers float on jade, and the streets are full of people in the first month. 4. The fragrance of osmanthus floated in the air, and the hometown met with autumn. 5. Want to buy osmanthus with wine, always do not like, young play. 6. It's not a human species, it's from the moon. Guanghan Fragrance was lit, and the whole mountain was blown away. 7. Looking for osmanthus trees in the empty mountains, I miss my old friends when I fold the incense. Old friends across the autumn water, a look, a frown. 8. Dark light yellow body soft, love sparse trace far away only fragrance left. 9. The moon fell on the laurel tree, and the clouds of heavenly fragrance floated outside. 10. The west wind is good at all fragrances, and the autumn scenery is very busy for Yi. The novel " Smelling the Jasmine Fragrance Again " is equally exciting. Everyone is welcome to click and read it!
In the park, there were low-end and inferior "counterfeit" bear statues. In addition, there was also an animated film called " Xiha Yingxiong." From the name, it was easy to mistake it for a big movie called " Bears Haunt." However, the production level was far inferior to the big movie series of " Bears Haunt." Both the plot and the character design were terrible. Its production level was even inferior to the TV version of " Bears Haunt." <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The synonym of "intoxicated and unable to return" was "lingering", so a sentence with a similar meaning could be a sentence that expressed that one was intoxicated with something or a place and forgot to return. For example,"happy but unable to think of Shu" had a similar meaning and could be expressed as a sentence such as "happy here but unable to think of Shu"(This was an example of a sentence derived from the meaning). You can also construct sentences from indulging in the scenery, such as "It's hard to find the way back to the lost scenery"(This is an example of a self-constructed sentence).
The severity of gastric ulcers was closely related to diet. Unhealthy diet was one of the important factors in the development of gastric ulcers. For example, long-term consumption of stimulating food, irregular diet, and excessive eating could aggravate the condition of gastric ulcers. There were mainly the following types of drugs to treat gastric ulcers: 1. Proton pump inhibition drugs, such as Omeprazol, Lansoprazol, etc. Because gastric ulcers are associated with excessive gastric acid secretion, the use of a proton-pump antagonist can suppress gastric acid secretion. These drugs should be taken 0.5 - 1 hour before breakfast. If taken twice a day, the other should be taken 0.5 - 1 hour before dinner. However, it should be noted that these drugs have the risk of bone fracture, may lead to iron deficiency leukemia, VB12 deficiency, pneumonia, intestinal infection and other adverse reactions. Those with severe liver function disorder should reduce the dosage as appropriate, and avoid large doses (such as doubling the standard dose or more for a long period of 6 months or more). If there are indications, they should be taken under the guidance of a doctor. Omeprazol and other drugs affect the metabolism of clogrel into active substances, so they should be avoided taking it together with clogrel. 2. Protective agents for the gastric mucus: For example, the weakly basic antacid, aluminum calcium, etc., can neutralize gastric acid and take effect quickly. It can temporarily relieve pain, but it is difficult to cure the stomach. It can be used when the stomach is sore. 3. Eradication of H. Pylori drugs: H. Pylori infection is an important pathogenic factor for gastric ulcers. If H. Pylori infection is positive, four drugs, namely Omeprazol, Clarisons, Amoxillins, and Bismuthium Citrate, are needed to eradicate H. Pylori. All the above medicines should be used under the guidance of a doctor. Self-medication should be avoided. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
For enterprises that sell biological products, if they are general value-added tax collectors, when purchasing biological products from manufacturing enterprises, they can choose to use the simple tax calculation method because the manufacturing enterprises sell their own biological products. The tax is calculated according to the levy rate of 3%. The special value-added tax receipt obtained by such enterprises can only deduct 3% of the value-added tax input tax. When such enterprises sold their diagnosis reagents, the value-added tax rate was 16% after May 1, 2018, and the actual tax burden was 14%. However, the Hubei region had reflected the heavy tax burden of such enterprises. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
In real history, Ran Min of Wei was captured alive by Murong Ke, the former general of Yan, in the year 352. He was later killed by Murong Jun. However, you mentioned the word 'novel' in your question. Since there is no specific information such as the name of the novel, I cannot accurately answer the ending in the novel. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The political review of teachers mainly reviewed the following aspects: 1. ** Files Review **: The hiring unit will usually arrange for personnel to go to the place where the file is located for file transfer review. The main check is to check the three ages and two histories. The three ages refer to age, length of service, and party age. The two histories refer to academic qualifications and work experience. At the same time, the authenticity of the file must be checked to ensure that the information submitted matches the person. 2. ** Personal Review **: The employer will send people to the previous workplace (school for fresh graduates) to ask colleagues, leaders (or mentors, classmates) about their own situation, or to the community and village committee to ask about the relevant situation. In some places, they will also ask for a certificate of no crime. 3. ** Family member review **: Although ordinary teacher posts do not explicitly require the review of family members, some posts, such as public security and prison related posts, will review whether immediate family members have committed criminal offenses. 4. ** Other aspects **: Investigate whether the candidate has a criminal record, the resume of immediate family members, personal credit records, whether they exceed the family planning, etc. They will also check whether the candidate has a bad credit record, whether he has joined an illegal organization, whether he has a criminal record, etc. Secondly, check whether the candidate's immediate family members have violated the law and discipline, whether they have joined a cult organization, etc. The political review mainly emphasized that the candidates themselves had advanced thoughts, good moral character, upright style, strong organizational discipline and legal concept. Generally speaking, there are words and deeds that oppose the four basic principles, bad behaviors such as hooligans or theft, poor moral character, criminal suspects that have not yet been investigated, direct blood relatives or collateral blood relatives that have a greater impact on the person engaging in activities that endanger national security abroad, and there is no clear boundary between the person and the direct blood relatives or collateral blood relatives that have a greater impact on the person who have been sentenced to death or are serving their sentences. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>