"The Biosphere is the Largest Ecosystem" Understanding the Biosphere PPT Courseware 3

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"The Biosphere is the Largest Ecosystem" Understanding the Biosphere PPT Courseware 3

Atmosphere The Earth is surrounded by this thick layer of atmosphere

It is composed of a variety of gases, such as nitrogen, oxygen, and carbon dioxide. The main organisms are flying insects and birds, as well as microorganisms such as bacteria.

Hydrosphere is the general term for various forms of water on and near the earth's surface.

The lithosphere is the solid part of the Earth's surface

It is the "footing point" of all living things

1. Diverse ecosystems

forest ecosystem

Distribution: Humid or relatively humid places.

Features: There are many kinds of animals and plants in a stable state. The plants are mainly trees, with a small amount of shrubs and herbaceous plants; because it is easy to find abundant food and habitat in trees, there are many types of animals that live in arboreal and climbing lives.

effect:

1. Provide humans with a large amount of wood and forest sideline products.

2. Improve the ecological environment, known as the "green reservoir" and "the lungs of the earth".

grassland ecosystem

Distribution: Arid areas with little annual rainfall.

Features: There are few types of animals and plants. In different seasons or years, the rainfall is uneven, and the number and types of animals and plants will change drastically. The plants are mainly herbaceous, with a small amount of shrubs and very few trees; most of the animals are characterized by digging holes and running fast.

Function: 1. The animal husbandry industry is developed, providing people with a large amount of meat, milk and fur.

2. Regulate the climate and prevent the land from being eroded by wind and sand.

2. The biosphere is a unified whole

The biosphere refers to the entire field of life activities on the earth and its living environment.

The biosphere is a unified whole, the largest ecosystem on earth, and the common home of all living things.

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"The Biosphere is the Largest Ecosystem" Understanding the Biosphere PPT Courseware 9:

"The Biosphere is the Largest Ecosystem" Understanding the Biosphere PPT Courseware 9 1. Scope of the Biosphere Is there life everywhere on the earth? It is impossible for living things to exist inside the earth's crust. The place on earth suitable for biological survival is actually only a thin layer on its surface...

"The Biosphere is the Largest Ecosystem" Understanding the Biosphere PPT Courseware 8:

"The Biosphere is the Largest Ecosystem" Understanding the Biosphere PPT Courseware 8 Ask students to self-study the content on page P2830 of the textbook to understand the types of ecosystems. Forest ecosystem distribution: humid areas. Characteristics: Plant and animal species ________, complex and stable structure. ..

"The Biosphere is the Largest Ecosystem" Understanding the Biosphere PPT Courseware 7:

"The Biosphere is the Largest Ecosystem" Understanding the Biosphere PPT Courseware 7 1. Scope of the Biosphere Concept of the Biosphere: The sum of all living things on the earth and their environment is called the biosphere. 1. Thickness of the biosphere: about 20 kilometers 2. Scope of the biosphere: the bottom of the atmosphere..

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Update Time: 2024-07-29

This template belongs to biology courseware People's Education Edition seventh grade biology volume 1 industry PPT template

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