The components of an ecosystem include biological parts and abiotic parts.

1. Biological parts: producers, consumers and decomposers.

2. Abiotic parts: light, carbon dioxide, oxygen, water, inorganic salts, etc.

Components of an ecosystem

1. Producer (autotroph): Inorganic substances can synthesize organic substances. For example, green plants through photosynthesis.

2. Consumer (heterotrophs): Inorganic substances can't synthesize organic substances, and they eat plants directly or indirectly. Like a rabbit.

3. decomposer (heterotrophs): saprophytic bacteria, fungi and some animals. Such as mushrooms and earthworms.

4. Abiotic parts: oxygen, carbon dioxide, water, inorganic salts, light energy, etc.

Biological and abiotic environments constitute an ecosystem.

1. In a certain spatial range, the unified whole formed by biological and abiotic environment/environment is called ecosystem. Like a river.

2. Plants produce organic matter through photosynthesis and are producers of ecosystem components. Nutrition is autotrophic.

3. Animals can't make their own organic matter and eat plants directly or indirectly, so they are called consumers. The way of nutrition is heterotrophic.

Most bacteria, fungi and some animals are decomposers in the ecosystem. After decomposition of organic matter in animal and plant remains, discharged relics, etc. Converted into inorganic substances, which can be absorbed and utilized by plants. Producers, consumers and decomposers are interdependent and mutually restrictive.

Food chain and food web are the nutritional structure of ecosystem.

In the ecosystem, the chain structure formed by different organisms due to the relationship between eating and being eaten is called food chain. Many food chains are intertwined to form a food web.

1, food chain: the relationship between predator and prey begins with the producer and ends with the consumer with the highest nutritional level. Both matter and energy flow along the food chain. There is no decomposer and abiotic environment in the food chain. The arrow is pointed at the predator by the predator.

2. Food web: Many food chains are intertwined.