1. What are some essays about environmentally friendly creatures
"Ding Lingling, it is July 14, 2020."
A crisp ** * and the recording woke me up from my dream. I looked at my watch, wow, it's 6:20, I have to go to the laboratory quickly, where there are environmentally friendly organisms we just cultivated.
I came to the marine life breeding area and saw my old classmate Ying Yu feeding the second-generation "Xingxing" fish cloned from "Xingxing". This fish is as big as a killer whale when it reaches adulthood.
This is the combination of genes extracted from killer whales and genes extracted from the "Xingxing" first-generation fish to create the "Xingxing" second-generation fish. The "Xingxing" second-generation fish never eats other fish or animals. It eats industrial waste exclusively and keeps eating. The "Xingxing" second-generation fish eats the industrial waste in the water into its stomach, and the feces it excretes after digestion is It’s no longer poisonous and can be used as fertilizer! In the plant cultivation area over there, I received grass seeds, scattered the seeds in the experimental field, poured water on them, and after a while, small sprouts sprouted from the ground.
The growth rate of this kind of grass is no less than that of the strange lotus. It only takes one day after being buried in the ground for a grass to grow up. There are small holes on the grass blades. The grass uses the small holes to suck air into the body. After 10 seconds, the filtered fresh air is released from the grass blades, and the harmful exhaust gas is converted into nutrients by the grass.
With such environmentally friendly creatures, the earth will be a more beautiful world. 2. Essay on wonderful environmentally friendly creatures
In the recent science class, we learned a lot about cells, but none of us have actually seen cells. This is the third activity of the Science Holiday Team , let us realize this wish. At about nine o'clock, my team members and I, led by my mother, came to a laboratory at Zhejiang Gongshang University. As soon as we entered the door, we were greeted by rows of chemical reagents and unknown large-scale I was deeply attracted by the instrument. An uncle with a doctorate in the laboratory warmly received us. First, he showed us the images of mouse taste bud cell sections under the microscope. Under the microscope, these cells were purple and were It's spindle-shaped and very beautiful. The uncle said: "To make cell slices, first put the mouse into a glass bottle, then add nitrogen to it to anesthetize the mouse. Under the anesthesia, remove the mouse's tongue and wrap it in paraffin. , then cut into two to three micron slices with a microtome, and finally stained." No wonder the cells I saw were all purple. I suddenly realized. I asked my uncle: "Is it the function of taste bud cells in each area of ??the tongue? Are they all different?" "Yes." Uncle said, "Each area of ??the tongue is responsible for different tastes. The tip of the tongue feels sweet, the two sides of the tongue feel sour, the front half of the tongue feels salty, and the base of the tongue tastes salty. I am more sensitive to bitter tastes." I couldn't help but think that taste buds play such a big role. Without them, we wouldn't be able to taste the delicious food! After looking at taste bud cells, we wanted to observe the shape of plant cells under a microscope, so we went to find some leaves to observe. Uncle told us that to see clearly, we should look for leaves with less dust and clean leaves. I followed what my uncle said After asking for it, I carefully selected and found a variety of unknown leaves and a petal! After returning to the laboratory, I first cut the petal into a small piece, sandwiched it between two slides, and then placed it under the microscope. I used the coarse adjustment knob of the microscope to adjust the focus to the approximate position, and then used the fine adjustment knob to adjust it to The best position, so you can observe it. You really don’t know it until you see it. It’s shocking when you look at it. The petals that originally felt extremely smooth to the touch look like they are made of pink broken glass pieces under the microscope. It’s really incredible. The last thing The most unforgettable thing is the osmanthus leaf. I put it under a microscope and observed it, and suddenly I found that it was covered with white spots. I suddenly remembered what the teacher in the science class once said about plant stomata, and I turned my head. I asked my uncle for confirmation and got a positive answer. So I carefully adjusted the focus with fine adjustments until the stomata, leaf veins and green leaf tissue were clearest. At this time, a strange and beautiful scene appeared in front of my eyes, large tracts of The leaf tissue is like an endless field, and the criss-crossing leaf veins are like rivers and fibers distributed in it, while the sparse and sometimes dense white stomata are like stars in the sky embedded in the field. I can't help but deeply admire the nature. He is truly the greatest painter who can do such incredible work on such a tiny canvas! In daily life, what we see with our eyes is only the macroscopic world, but there are still many mysteries in the microscopic world under the microscope waiting for us to explore. I also realize the importance of scientific instruments. Without these instruments, maybe we still don’t know the relationship between the macroscopic world and the macroscopic world. There is a wonderful microscopic world opposite the world! My team members and I all said that this trip to the microscopic world not only allowed us to see various animal and plant cells, but also enhanced our interest and desire for science. 3. How to write an essay on environmental biology
Now the earth’s environment is getting worse and worse, but many people still don’t take it seriously.
Garbage is flying all over the sky, floating on tree branches and in the river, everywhere, polluting the river. The small fish and shrimps that once played in the river have disappeared without a trace. They once sang on the branches. The little bird disappeared.
People cut down trees in large numbers. China currently produces and discards 45 billion pairs of disposable chopsticks every year, which is equivalent to 25 million adult trees being cut down! Many plastic products have to be buried underground for a thousand years to decompose, during which time they will continue to release greenhouse gases! Will you remain indifferent after seeing this? We should start from small things, do not litter, do not spit, drive less private cars, it is better to use public cars when going out, use a variety of flowers, plants and trees, carry chopsticks and bags with you when going out, avoid using Disposable chopsticks and plastic bags, etc.
Once, I failed to be environmentally friendly. That night, I wanted to throw away my finished homework. My mother saw it and said to me: "These papers can be recycled and reused. What a pity it is to waste them. The back of the paper can still be used. Just use it." Use straw paper."
I lowered my head and realized my mistake. From now on, I will not waste any more. The earth is our great mother. Although she is 4.5 billion years old, the youth and aging of the earth are not measured by age. As children of the earth, we should keep our mother young forever! Come on, let us work together. I believe that if everyone makes efforts, the small forces will gather into huge forces, so that our mother earth will be able to restore its previous health and beauty. 4. Write an essay on the topic of "Protecting Wild Animals" to awaken people's environmental awareness
Animals, like us humans, have thoughts, feelings, and their own way of life, and are more free. Right. We arbitrarily destroy the habitats of animals without their consent; arbitrarily injure their bodies without their consent; and decide their death without their consent. Whether we have considered their feelings, their thoughts, and whether they have decided when their lives will end. We humans are now advocating cherishing life and cherishing life. Our human lives are very important. Precious, isn't the life of animals worth cherishing? Maybe we humans also have times when we don't want to die but have no right to choose, but such things are in the minority after all. We can't regard animals as part of us humans, as ours Friends, should we treat them like our family members? Our living standards are getting higher and higher, information is becoming more and more developed, and our requirements for material and spiritual life are getting higher and higher. But can we include "edible food" in our material life? Delete the article "Wild animals are good for the body". Nowadays, some people say that eating wild animals can help you live longer; some say that eating wild animals is nutritious; and some even say that eating wild animals is good for the brain. I think this may be true. Yes, but humans cannot blindly follow it. Some animals contain carcinogens. Not to mention this, even if eating wild animals is good for us, have humans ever thought that when we kill them to our heart’s content, we humans Is his death day approaching? I think anyone who has read a book is familiar with the term "biological chain", right? Once the biological chain is destroyed, it means that the biological family will disappear from the earth as quickly as possible, and eventually humans will die. By the time humans get their retribution, there will probably be no room for recovery, right? Everyone knows a wise saying - there is no regret buying medicine in the world. Why can't we think about it, think about it, and implement it after knowing this sentence? As long as we always remember this sentence and always think about putting it into practice, when we see those innocent creatures on the table, will we still happily want to eat them? Would you make such a huge mistake again? It is not certain whether the "end of the world" will happen in 2012, but if we do not protect our environment and protect our precious wildlife, I am afraid that the end of the world will change from uncertainty to certainty. Right. Nowadays, animal and plant species around the world are disappearing from the earth at the fastest speed, sometimes even one species disappears every minute. If this trend continues, won’t humans disappear? Can't humans just imagine it? Can't we make plans for the future? Can't we plan for future generations? Can't we make plans for the long-term development of mankind? Our current life is happy and satisfying, we don’t need food and clothing, and information is highly developed. These are all left by our ancestors. These are the results of their hard work. As future generations, do we want to destroy their achievements like this? As soon as? Are our descendants so unqualified? Must their achievements be destroyed? Wouldn't it be a pity for mankind that the earth is destroyed like this? Therefore, for the long-term development of mankind, we must cherish and protect wild animals, cherish our happy life, and further develop the achievements left by our ancestors. 5. Essay on environmental protection biology
Part 1: People have always thought that the sea, land and air on the earth are endless, so they never worry about sending tens of millions of tons of waste gas into the sky, and sending tens of millions of Billions of tons of garbage are dumped into the ocean.
Everyone thinks that the world is so big, what does this little waste count? We were wrong. In fact, although the earth is huge, living things can only live within the range of 8 kilometers above sea level to 11 kilometers under the sea, and 95% of living creatures can only live within the range of about 3 kilometers in between. How dare people The earth contaminates this limited living environment in three ways.
Marine pollution: Mainly crude oil leaked from oil tankers and oil wells, pesticides and fertilizers used in farmland, sewage discharged from factories, and acidic solutions flowing out of mines; they have polluted most oceans and lakes, with the result that not only marine life Birds and humans may also be poisoned by eating these creatures.
Land pollution: Garbage cleanup has become an important issue in major cities. Among the tens of millions of tons of garbage every day, many cannot be incinerated or decayed, such as plastic, rubber, glass, aluminum and other wastes. They have become the number one enemy of urban health.
Air pollution: This is the most direct and serious form. It mainly comes from carbon monoxide and hydrogen sulfide released from factories, cars, power plants, etc. Every day, people become infected due to exposure to these polluted air. Problems with organs or visual organs. If we continue to ignore the warnings of experts, we will surely end up without even an inch of pure land to live in in the future.
Environmental pollution refers to the direct or indirect discharge of substances or energy by humans into the environment that exceeds its self-purification capacity, thereby reducing the quality of the environment and causing adverse effects on human survival and development, ecosystems and property. Phenomenon. Specifically include: water pollution, air pollution, noise pollution, radioactive pollution, etc.
Water pollution refers to the change of chemical, physical, biological or radioactive pollution characteristics of water due to the intervention of certain substances, thereby affecting the effective use of water, endangering human health or damaging the ecological environment. , causing the deterioration of water quality. Air pollution refers to the phenomenon in which the concentration of pollutants in the air reaches harmful levels, causing damage to the ecosystem and the conditions for normal human survival and development, and causing harm to humans and living things.
Noise pollution refers to the phenomenon that the environmental noise generated exceeds the environmental noise emission standards stipulated by the state and interferes with the normal work, study, and life of others. Radioactive pollution refers to the presence of radioactive substances or rays that exceed national standards on or inside materials, human bodies, places, and environmental media due to human activities.
For example, exceeding the emission standards of pollutants set by the state and local governments, emitting pollutants in excess types, quantities, and concentrations; loading and transporting oil without taking measures to prevent overflow and leakage Or toxic goods cause the goods to fall into the water, causing water pollution; illegally discharge toxic and harmful substances into the atmosphere, causing air pollution accidents, etc. With the development of science and technology and the improvement of people's living standards, environmental pollution is also increasing, especially in developing countries.
Environmental pollution has increasingly become one of the common topics in every country in the world. Because people did not fully anticipate the negative impacts of highly developed industries and failed to prevent them, they have led to three major global crises: resource shortages, environmental pollution, and ecological destruction. Human beings continue to discharge pollutants into the environment.
However, due to the diffusion, dilution, redox, biodegradation, etc. of the atmosphere, water, soil, etc. The concentration and toxicity of pollutants will naturally decrease. This phenomenon is called environmental self-purification.
If the discharged substances exceed the self-purification capacity of the environment, adverse changes in environmental quality will occur, endangering human health and survival, and environmental pollution occurs. Environmental pollution will reduce biological production and aggravate environmental damage.
The main sources of environmental pollution include the following aspects: 1) Waste smoke, waste gas, waste water, waste residue and noise emitted from factories; 2) Waste smoke, waste gas, noise, stolen water and garbage emitted in people's lives; 3) Exhaust gas and noise from transportation vehicles (all fuel vehicles, ships, airplanes, etc.); 4) Water flowing out from farmland irrigation where chemical fertilizers, pesticides, herbicides and other chemicals are used extensively. 5) Mine wastewater and waste residue.
The harm of water pollution is self-evident. Water pollution and deterioration of water quality have serious consequences for human health, human life, and production. Environmental protection is the biggest problem faced by mankind in modern life. It must be solved This problem must start from the basics. First of all, it is necessary to conduct extensive publicity to raise people's awareness and understanding and strengthen environmental awareness. Secondly, it is necessary to recycle waste and reduce the felling of forest trees. It is also necessary to strengthen the treatment of white pollution, Use less plastic products. Finally, improve cleaning to make the city tidier. For the future of the earth, we must start working hard from now on to protect the environment. Here we make the following suggestions: Implement garbage classification and bagging .This will not only reduce the workload of sanitation workers, but also better utilize waste, reduce pollution, and save resources. When buying food, use less plastic bags and use bamboo baskets as much as possible. Use pens with refills as much as possible. Reduce the waste of ballpoint pen shells and the amount of garbage. Try not to use disposable lunch boxes when eating out. Sowing green means sowing hope. Excessive garbage and environmental problems. Garbage recycling and comprehensive utilization of resources. Recycling of garbage and comprehensive utilization of resources (Part 2) in the sea bathroom. Science reminds us of drinking pure water. Nowadays, drinking water is becoming a trend. Although the media has introduced the disadvantages of drinking water more than once, the number of drinking water users is still expanding day by day. Drinking water does not only refer to pure water, but also includes mineral water. Distilled water or even space water, etc. The tap water we grew up drinking has become relatively non-drinking water. We do not rule out that drinking water is currently popular and hype plays a certain role, but it reflects the seriousness of current water pollution. To the point where it's hard to swallow...
6. What are some essays about environmentally friendly creatures
"Ding Lingling, it is July 14, 2020."
A crisp *** and recording brought me out of my dream Awakened with a start. I looked at my watch, wow, it's 6:20, I have to go to the laboratory quickly, where there are environmentally friendly organisms we just cultivated.
I came to the marine life breeding area and saw my old classmate Ying Yu feeding the second-generation "Xingxing" fish cloned from "Xingxing". This fish is as big as a killer whale when it reaches adulthood.
This is the combination of genes extracted from killer whales and genes extracted from the "Xingxing" first-generation fish to create the "Xingxing" second-generation fish. The "Xingxing" second-generation fish never eats other fish or animals. It eats industrial waste exclusively and keeps eating. The "Xingxing" second-generation fish eats the industrial waste in the water into its stomach, and the feces it excretes after digestion is It’s no longer poisonous and can be used as fertilizer! In the plant cultivation area over there, I received grass seeds, scattered the seeds in the experimental field, poured water on them, and after a while, small sprouts sprouted from the ground.
The growth rate of this kind of grass is no less than that of the strange lotus. It only takes one day after being buried in the ground for a grass to grow up. There are small holes on the grass blades. The grass uses the small holes to suck air into the body. After 10 seconds, the filtered fresh air is released from the grass blades, and the harmful exhaust gas is converted into nutrients by the grass.
With such environmentally friendly creatures, the earth will be a more beautiful world. 7. A 300-word essay on environmentally friendly organisms
Throughout the ages, Mother Earth has nurtured countless generations of descendants with her sweet milk. It turns out that she was beautifully decorated by the juniors. However, now humans torture her to the point of darkness for their own benefit. Humanity has only one earth; and the earth is facing a severe environmental crisis. "Save the Earth" has become the strongest voice of people around the world.
I feel heartbroken by the deterioration of the surrounding environment. I think: as the future successors, if young people do not understand the seriousness of environmental problems, ignore laws and regulations related to environmental protection, and do not enhance their awareness of environmental protection, , our lives will be destroyed in our own hands, and God will severely punish us. For this reason, I made up my mind to start from myself, protect the environment, protect our homeland, and be a guardian of the environment.
In the past year, I actively participated in tree planting activities carried out by the school. I led the class cadres of our squadron to create the "Green Angel" green planting and protection group, and encouraged the team members to adopt green trees on campus. A small sapling, I used my spare time to dress it up, laying the foundation for it to grow into a towering tree. In the "Let the Earth Be Full of Life" signing event organized by the school, I solemnly signed my name, and wrote down my determination and expectations for environmental protection, and my vision for a better future. I actively participated in the award-winning submissions held by the school on World Environment Day, carefully reviewed and collected various materials, conducted social surveys, and wrote articles on environmental governance ideas. I often attended environmental lectures organized by the school and watched environmental protection recordings. Together, we actively participated in the environmental protection knowledge Q&A survey and filled in each question carefully. I participated in the construction of the website of the "Red Scarf Planting and Green Protection Team", where I published a large number of environmental protection pictures and environmental protection knowledge, as well as legal knowledge on various aspects of environmental protection, my country's development trends in environmental protection, and the environmental protection situation in various countries around the world; Every month, I use the Internet and newspapers to find some of the latest different topics and sections of "environmental protection information" to tell everyone; I also regularly make some publicity boards to promote environmental protection knowledge and common sense of environmental protection in life. It has improved everyone's awareness of environmental protection; it calls on students to care for their homes from different aspects, start from the small things around them, and contribute their part to the surrounding environment! I actively mobilize people around me to work together to protect and build mankind's last and only home in accordance with the law, to promote the sustainable development of the economy and society, and to contribute to human civilization. I also jointly launched with my classmates "Raise a pot of flowers, adopt a tree, cherish every piece of green space, let us be surrounded by green" and "Use small plastic bags instead of foam lunch boxes and disposable chopsticks to keep us away from white pollution” initiative. Let us put down the convenience bags, pick up the vegetable baskets, and let us move towards a beautiful green tomorrow and a glorious and brilliant future together!
According to a report I collected: "Environmental problems are caused by human beings' unreasonable development and utilization of natural sources. The shocking environmental problems mainly include air pollution, water pollution, noise pollution, The five major categories of food contamination and inappropriate development and utilization of natural resources "are ironclad facts that tell us that they are ruthlessly devouring human life like demons. It threatens the ecological balance, harms human health, restricts the sustainable development of the economy and society, and puts mankind into trouble. For this reason, I make a declaration: "As long as we, human beings, never forget the awareness of protecting the environment and the awareness of managing the environment in accordance with the law, the global village will become a beautiful paradise." The sky in the future must be blue, the water is clear, the trees are lined with flowers, and human beings can enjoy the happiness that nature has bestowed upon us.
“The true test of our contribution to the environment is not words but actions.
"Although I am only doing some small things now, I firmly believe that if we all have a sense of responsibility to protect the environment, start from ourselves, start with small things, and work together to protect our homeland, we will naturally give mankind the due There are rewards. Take a nap on the grassland, the cradle of warmth; grow up under the sky with a kind smile, and bathe in the river, the source of love
I hope it will be helpful to you 8. Want an article An essay on environmental biology, primary school essay
I used to be a little environmental protection guard in my small yard. I had to go downstairs to pick up garbage every day. There was a lot of garbage to pick up, including milk cartons, paper balls, etc.
Once, I was picking up trash in the lobby on the first floor.
I stared at the little boy and continued to pick up trash. /p>
The little boy took out a paper ball from his pocket.
I was hit by the paper ball and said angrily: "Why did you do that?" How to do it? "You want to pick up trash!" I'll pick it up for you! "As he said this, he made a paper ball and threw it on the ground.
At this time, the neighbor's grandfather came. Grandpa asked me: "What's going on? "I told the whole story and ending.
Grandpa asked: "Why do you pick up garbage? "I said: "I am a little environmental protection warrior. If everyone is like him, our community will become a garbage dump! If everyone picks up trash. Our community is clean and comfortable, isn’t it great? "Grandpa nodded and criticized the little boy.
He praised me and said: "You did the right thing! "I looked at the little boy, his face was red, and he lowered his head. 9. Essay: Environmental Biology 350 words
Nowadays, environmental protection is advocated, but how many people actually do it? Endangering the environment
Nowadays, disposable plastic bags are widely used and are loved by people for their lightness and convenience. However, if plastic bags are thrown into farmland, they will not only cause visual damage. Pollution, and its plastic structure is stable and not easily degraded by natural microorganisms. If it is not separated in the natural environment for a long time, this waste plastic waste will become permanent pollutants in the environment and accumulate continuously, which will cause harm to the environment. It is extremely harmful. So please don’t use disposable plastic bags and take good care of our earth!
If we live in a noisy place for a long time, then the noise will be harmful to us* **, seriously affects the quality of our sleep, and can cause dizziness, headache, insomnia, dreaminess, memory loss, inattention, neurasthenia symptoms, nausea, vomiting, stomach pain, bloating, sluggish appetite and other digestive tract symptoms. If you don’t want to get sick, please plant more trees, because trees can absorb noise and other pollutants, and they can also protect the environment. (Shucun.com)
We all cannot live without the earth, because we are all the same. Destiny, we are connected. Let’s act together to make the earth better tomorrow! 10. Essay on Wonderful Environmentally Friendly Biology
The recent science class has taught us a lot about cells. None of us have actually seen cells. This third activity of the Science Holiday Team made our wish come true.
At about nine o'clock, my team members and I arrived. A laboratory at Zhejiang Gongshang University. As soon as we entered the door, we were deeply attracted by the rows of chemical reagents and unknown large-scale instruments. First of all, we were warmly received by a doctor uncle in the laboratory. He showed us the images of mouse taste bud cell slices under the microscope. Under the microscope, these cells are purple and spindle-shaped, and they are very beautiful. The uncle said: "To make cell slices, you must first put the mouse into a glass. bottle, and then add nitrogen to it to anesthetize the mouse. Under anesthesia, the mouse's tongue is removed and wrapped in paraffin, then cut into two to three micron slices with a microtome, and finally stained. "No wonder the cells I saw were all purple. It dawned on me. I asked my uncle: "Do the taste bud cells in each area of ??the tongue work differently? ""Yes. "My uncle said, "Each area of ??the tongue is responsible for different tastes. The tip of the tongue feels sweet, the sides of the tongue feel sour, the front half of both sides of the tongue feels salty, and the base of the tongue is more sensitive to bitter taste. "I can't help but think, taste buds play such a big role. Without them, we won't be able to taste the deliciousness of food!
After looking at the taste bud cells, we wanted to observe the shape of plant cells under the microscope. , so we went to look for some leaves to observe. My uncle told us that to see clearly, we must look for leaves with less dust and clean leaves. I carefully selected according to the requirements of my uncle and found a variety of unknown leaves. There is another petal! After returning to the laboratory, I first cut the petal into a small piece, sandwiched it between two slides, and then placed it under the microscope. I used the coarse adjustment knob of the microscope to adjust the focus to the approximate position. Then use the fine-tuning knob to adjust it to the best position, so that you can observe it. It's really hard to see. It's shocking to see that the petals that originally felt so smooth look like they are made of pink broken glass under the microscope. , it’s really incredible.
The most unforgettable thing is the osmanthus leaf. I put it under a microscope to observe, and suddenly found that it was covered with white spots. I suddenly remembered what the teacher in science class once said about plant stomata. He turned to his uncle for confirmation and got a positive answer. So I carefully adjusted the focus with fine-tuning until the stomata, leaf veins and green leaf tissue were clearest. At this time, a strange and beautiful scene appeared before my eyes. Large areas of leaf tissue were like endless fields, and the crisscrossing leaf veins were like rivers and fibers distributed among them. At that time, the sparse and sometimes dense white stomata It's like a sky full of stars embedded in the fields. I couldn't help but admire that nature is really the greatest painter, and she can be so miraculous on such a tiny canvas!
In daily life, what we see with our eyes is only the macroscopic world, but there are still many mysteries in the microscopic world under the microscope waiting for us to explore. I also realize the importance of scientific instruments. Without these instruments, we might not know that there is a wonderful microscopic world opposite to the macroscopic world! My team members and I all said that this trip to the microscopic world not only allowed us to see various animal and plant cells, but also enhanced our interest and desire for science.