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Ecosystem

Green plants are called producers because they can produce their own food through photosynthesis. Decomposers play an important role in decomposing dead organisms and recycling nutrients back into the soil, helping maintain environmental balance. Carnivorous animals indirectly depend on plants, as herbivores eat plants and carnivores eat herbivores. The ecosystem components include biotic factors like producers, consumers, and decomposers, as well as physical abiotic factors like air, water, soil, and sunlight.

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46 views2 pages

Ecosystem

Green plants are called producers because they can produce their own food through photosynthesis. Decomposers play an important role in decomposing dead organisms and recycling nutrients back into the soil, helping maintain environmental balance. Carnivorous animals indirectly depend on plants, as herbivores eat plants and carnivores eat herbivores. The ecosystem components include biotic factors like producers, consumers, and decomposers, as well as physical abiotic factors like air, water, soil, and sunlight.

Uploaded by

Tushita Lama
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© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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3. Give Reasons for the following statements.

a. Green plants are called producers of an ecosystem.

Green plants are called producers of an ecosystem because all green

plants can prepare their food themselves through photosynthesis.

b. Decomposers play important role for environmental balance.

When animals or plants die, they are decomposed or decayed by

decomposers. The decomposed materials get mixed to the soil and

make soil fertile. This helps to keep environmental balance.

c. Carnivorous animals indirectly depend upon plants for their food.

Carnivorous animals eats herbivorous and herbivorous animals are

dependent on plants for food. So if plants are not there then there

will be no herbivore ultimately all carnivore also die.

4. Answer these questions.

a. Explain the various components of environment.

The components of ecosystem are mainly categorized into two types.

They are biotic components and physical or abiotic components. Biotic

components are further divided into three groups: producers,

consumers and decomposers.

b. Explain the various types of consumers.

Consumers are divided intro three categories. They are :

i. First class consumer (primary consumers)

The animals which eat plants only are called first class consumer.

Examples: Herbivorous animals like rabbit, deer, sheep, etc.


ii. Second class consumer ( secondary consumers)

The animals which eat first class consumers are called second class

consumers. Examples: Carnivorous animals like cat, snake, jackal, etc.

iii. Third class consumer (tertiary consumers):

The animals which eat second class consumers are called third class

consumers. Examples: Carnivorous animals like Tiger, lion, whale, etc.

c. Explain the physical components of environment.

Non-living components of an ecosystem make physical or abiotic

components of an ecosystem. Air, water, soil, sunlight, minerals, etc.

are abiotic components. Physical components can provide shelter, food,

and nutrient to biotic components.

d. Explain the interrelationship among producers, consumers and

decomposers.

Producers prepare their own food through photosynthesis. In this

process, they take carbon dioxide from atmosphere and absorb water

and minerals from soil. Most producers are plants. Producers are at

the beginning of any simple food chain. All animals directly or

indirectly depend upon plants for their food. Herbivorous and

omnivorous animals directly get their food from plants. Carnivorous

animals get their food from herbivorous animals. When animals and

plants die, their dead bodies are decomposed by microbes. the

decomposed materials gets mixed with the soil. These decomposed

materials are absorbed by the green plants to prepare their food. This

natural process continues in the nature continuously.

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