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The environment has an impact on living things, and organisms can also affect the environment while adapting to the environment The adaptability of living organisms is universal, and organisms must adapt to the environment in order to survive, otherwise they will be eliminated by nature.
1.Adaptation of organisms to the environment:
The adaptation of organisms to the environment is the process of survival of the fittest in natural selection, which promotes the continuous evolution of organisms, and the phenomenon of adaptation of organisms to the environment is common in nature.
The adaptation of organisms to the environment is relative, only to a certain extent, not absolute, complete adaptation, let alone permanent adaptation, that is, each organism can only adapt to a certain environment, not to all environments. Like the snow hare of the Arctic.
In winter, when the harvest arrives, it is replaced with white fur to acclimatize to the snow environment, but if the snow falls late. Such a body color is easy to be spotted by predators.
2.The environmental influence of living beings.
The relationship between organisms and the environment is mutual, and organisms can not only adapt to the environment, but also affect the environment; Conversely, the environment also affects the growth, distribution, etc. of organisms.
Organisms and the environment interact with each other, and it is a long process. In this process, the environment is constantly changing, and so are living things, and the interaction between living things and the environment has created today's thriving biological world.
Examples of adaptation of organisms to their environment:
Plants that grow in arid deserts or deserts have specialized needle-shaped or thorn-shaped leaves, and particularly well-developed root systems, such as cacti and camel thorns.
Wait; Since the living environment is often affected by strong winds in the same direction, only one side of the branches of the tree grows well.
Examples of environmental influences of living beings:
1) Affect the atmospheric environment: plant transpiration.
Increase air humidity.
Lowers air temperature and affects precipitation.
The leaves of some plants can absorb dust and toxic gases, which can play a role in purifying the air.
2) Affect the water environment: red tides caused by certain microscopic plankton.
phenomenon, causing harm to the water environment.
3) Affect the soil environment: earthworms.
It can loosen the soil and increase fertility.
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Question 1: What are the environmental factors that affect the survival of organisms There are biotic and abiotic factors.
The biological destruction factor is the direct or indirect influence of the relationship between the surplus and the scattered relatives of the living organism.
Abiotic factors refer to common problems such as water, sunlight, air, soil, etc. 2: What are the environmental factors that affect living things Biotic factors and abiotic factors Biological factors: Intraspecific relationships and interspecific relationships, such as intraspecific mutual assistance, intraspecific struggle, mutual benefit and symbiosis, parasitism, Chongling competition, and predation.
Abiotic factors: light, moisture, soil, temperature, atmosphere.
Question 3: What are the environmental factors that affect the survival of organisms There are biotic and abiotic factors.
Biotic factors are the direct or indirect effects of the relationship between the surplus and living things, and abiotic factors refer to common water, sunlight, air, soil, etc.
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Environmental pollution has a very adverse impact on the growth, development and reproduction of organisms, and when the pollution is serious, the morphological characteristics and survival numbers of organisms will undergo obvious changes. The following describes the harm of environmental pollution to organisms in four aspects: acid rain, harmful chemicals, heavy metals and eutrophication of water bodies.
Acid rain acidifies soils and rivers and flows through rivers into lakes, causing lakes to acidify. Acidification of lakes not only kills the plants that grow in and around the lake, but also threatens the survival of fish, shrimp and shellfish in the lake, thereby destroying the food chain in the lake and eventually turning the lake into a "dead lake". Acid rain also directly harms the leaves and buds of terrestrial plants, killing crops and trees.
At present, the harm caused by acid rain is becoming more and more serious, and it has become one of the important problems of global environmental pollution. Sulphur dioxide is one of the main pollutants that form acid rain. As the economy grows, humans will burn more coal, oil and natural gas, and produce more pollutants such as sulfur dioxide, so the harm caused by acid rain is likely to be more serious in the future.
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The transpiration of forest plants can increase the air temperature of the finches, which in turn affects the amount of rainfall.
Cedar can absorb toxic gases such as sulfur leakage from percolation ears and ears, thereby purifying the air.
Rats have a destructive effect on crops, forests and grasslands.
Earthworms drill around in the soil, which loosens the soil and improves the soil's ability to aerge and absorb water. It feeds on decaying plants and soil, and the excretion can increase the fertility of the soil.
Lichens can secrete lichen acid, corrode rocks, and gradually crack and rot the rock surface, thus forming soil and creating conditions for the survival of other plants.
The roots of Huangshan pine are also able to secrete acidic substances that decompose the rock.
In addition, the impact of human activities on the human living environment:
Human beings have an increasing impact on the environment, far exceeding that of any living thing on Earth, which leads to global environmental problems such as acid rain, the greenhouse effect, ozone layer depletion, red tides, etc.
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In recent years, with the rapid development of the regional economy, the problem of environmental pollution has become more and more serious, preventing environmental pollution, protecting the environment, and maintaining ecological balance has become an important measure for social development, and it is also the responsibility of every citizen.
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First of all, you need to obtain environmental data and charts, look at the reports available on the market, and refer to the priorities and materials of other people's reports, so as to write a good research report.
Refer to the number of heavy data sources.
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The transpiration of forest plants can increase the temperature of the air, entering.
and affect the amount of rainfall.
Cedar is able to absorb toxic gases such as sulfur dioxide, thereby purifying the air.
Rats have a destructive effect on crops, forests and grasslands.
Earthworms drill around in the soil, which loosens the soil and raises the soil.
of aeration and water absorption. It feeds on decaying plants and dirt, excreting things.
It can increase the fertility of the soil.
Lichens can secrete lichen acid, corrode rocks, and gradually crack and destroy the rock surface, thus forming soil and creating conditions for the survival of other plants.
The rotten part of the pine root bush in Huangshan can also secrete acidic substances to decompose the rock delirium.
In addition, the impact of human activities on the human living environment:
Human beings are increasingly influencing the environment to far more than any other living thing on Earth, which has led to global environmental leakage problems such as:
Acid rain, greenhouse effect, ozone layer depletion, red tides, etc.
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Organisms and the environment are a unified and inseparable whole. The environment can affect living things, and living organisms adapt to the environment, and at the same time, they continue to affect the environment, just as "water can carry a boat, but it can also overturn a boat". For example:
Cacti that live in the desert because of the lack of water in this environment make the leaves of the cactus turn into thorns, which also indicates that the cactus can adapt to the environment. Organisms can influence the environment, such as transpiration of terrestrial plants, and are an adaptation to life on land; But at the same time, terrestrial plants can disperse a large amount of water into the atmosphere during transpiration, which increases the humidity of the air and plays a role in regulating the climate.
Organisms are constantly taking in matter and energy from the environment, so they are limited by the environment, and at the same time, the life activities of organisms can constantly change the environment.
Since the advent of the first chemical power voltaic battery, it has gone through two centuries, during which the battery has made a great contribution to our human beings, especially since the 70s of this century, more and more mobile **, laptops and other electronic products into the daily life of consumers, so that the battery family has gained great development, but everything has pros and cons, a large number of batteries have brought huge pollution to the human environment after discarding, according to the test a button battery can pollute 600,000 liters of water, A person can't finish drinking in his life, and a No. 1 battery rotting in the ground can make a square meter of land lose its use value, what a shocking figure.
<> living environment of the yellow powder stove nucleus is relatively dark and dry. Mealworms like dry rather than wet, do not like light, suitable for living in a dim environment, adults encounter strong light, will go to the dark place hidden orange to escape, although day and night can be active, but nocturnal activity is more active.
Yes, you can study anything, but you have to agree with the teacher.
Yucai 2nd Primary 6 (4) Class Zhang Kezhu.
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