The relationship between the biosphere, ecosystems, the earth

1. The earth has a biosphere.

There are n ecosystems in the biosphere.

There are n communities in an ecosystem and n populations in a community.

2. Populations belong to communities, communities belong to ecosystems, and ecosystems belong to the biosphere.

The biosphere is a unified whole formed by all living things on the earth and the environment in which they live, and is the common home of living organisms.

1. The biosphere refers to all areas on the earth where the impact of life activities appears and is felt, and is a general term for surface organisms, including microorganisms and their bottom-up environment. The biosphere is the unique sphere of the planet Earth, which contains all forms of ecosystems on the earth and is the largest ecosystem.

2. Ecosystem refers to a unified whole composed of organisms and the environment in a certain space in nature, in which organisms and the environment influence and restrict each other, and are in a relatively stable state of dynamic equilibrium in a certain period of time. The extent of ecosystems can be large or small, and they are intertwined.

3. All places on earth where life exists belong to the biosphere. The life activities of living organisms promote the flow of energy and the circulation of matter, and cause changes in the life activities of living organisms. In order for organisms to obtain the necessary energy and matter from the environment, they have to adapt to the environment, and the change of the environment in turn promotes the adaptability of organisms, and this reaction promotes continuous change in the entire biological world.

4. The structure of ecosystems changes over time. The most essential connection between the elements of the ecosystem is achieved through nutrition, and the food chain and food web constitute the trophic relationship between species.

The biosphere is the total number of organisms on the Earth's surface and the range suitable for their existence, including the upper lithosphere, the entire hydrosphere and the lower atmosphere. The lithosphere includes the soil and is the substrate for terrestrial organisms. Most organisms live within a few tens of centimeters in the upper layer of the soil, and plant roots can stretch deeper.

The main factors restricting the deep distribution of life are lack of light and oxygen. Oil bacteria can live at depths of 2,500 to 3,000 meters. There are organisms almost everywhere in the hydrosphere, but there are more organisms on the surface and bottom of the water body.

The main factors limiting the distribution of organisms in the deep sea are lack of light, hypoxia and increasing pressure with depth. But there are still deep-sea creatures below 11,000 meters in the ocean. The thickness of the atmosphere is more than 1,000 kilometers, and the troposphere close to the ground is the site of weather phenomena and the gaseous environment that directly constitutes living organisms.

Most birds can only move in the air below 1,000 meters, and very few can fly above 5,000 meters. The main factors limiting the distribution of organisms to the upper altitudes are hypoxia, water shortage, low temperature and low atmospheric pressure. Some insects may be carried by atmospheric circulation into the stratosphere at an altitude of 22,000 meters, but the air above 10,000 meters cannot provide long-term living conditions for organisms, so the space is called "subbiosphere".

The biosphere is a system of dynamic equilibrium that constantly carries out the circulation of matter and the flow of energy, and has a certain regulatory function. The main human impacts on the biosphere are: the greenhouse effect, the destruction of the ozone layer in the atmosphere, acid rain and environmental pollution caused by the emission of toxic substances.

The interaction between a biological community and its inorganic environment to form a unified whole is called an ecosystem.

The biosphere is also an ecosystem, except that it refers to the integrated whole of all the ecosystems on the earth, and is an outer sphere of the earth, which covers about 10 kilometers vertically above and below sea level. It includes air, land, lithosphere, and water on Earth where life exists and is changed and transformed by life processes.

Naturally, there will be.

The biosphere is the largest ecosystem".

If you want to talk about the difference, then the biosphere is an ecosystem, and the ecosystem is not necessarily the biosphere, and all ecosystems on the earth in general can generally be said to be part of the biosphere.

The biosphere is the largest ecosystem".

The biosphere refers to all parts of the ocean, from the horizon to 10 km of the atmosphere and down to 10 km of the ocean. It includes air, land, lithosphere and water that are alive on Earth and are changed and transformed by life processes.

As the largest ecosystem on Earth, the biosphere also contains a variety of ecosystems, or more precisely, a variety of ecosystems.

It is composed of two artificial ecosystems: urban ecosystem and farmland ecosystem. Natural ecosystems include forest ecosystems, grassland ecosystems, lake (freshwater) ecosystems, desert ecosystems, sparse ecosystems, mountain ecosystems, wetland ecosystems, marine ecosystems, and so on.

What is the difference between the biosphere and the ecosystem?

The biosphere and ecosystems are two different categories. Ecosphere refers to the general term of the ecological factors of the whole earth; An ecosystem is a factor or a part of the ecosphere.