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Assertion : Decomposers keep the environ...

Assertion : Decomposers keep the environment clean.
Reason: They recycle matter by breaking down the organic remains and waste products of plants and animals.

A

Both assertion (A) are reason (R ) are true and reason (R ) is the correct explanation of assertion (A) .

B

Both assertion (A) and (R ) are the but reason (R ) is not be correct explanation of assertion (A ) .

C

Assertion (A ) is true but reason (R ) is false .

D

Assertion (A) is false but reason (R ) is true .

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The total organic matter ( biomass) production by plant is called :

Organisms depend on the producers either directly or indirectly for their sustenance ? These organisms which consume the food produced, either directly from producers or indirectly by feeding on other consumers are the consumers. Consumers can be classed variously as herbivores, carnivores, omnivores and parasites. The microorganisms, comprising bacteria and fungi, break-down the dead remains and waste products of organisms. These microorganisms are the decomposers as they break-down the complex organic substances into simple inorganic substances that go into the soil and are used up once more by the plants. Why do all organisms depend on producers for their substances ?

Knowledge Check

  • Assertion (A): Decomposers keep the environment clean. Reason (R): They recycle matter by breaking down the organic remains and waste products of plants and animals.

    A
    Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
    B
    Both Assertion and Reason are true but Reason is NOT the correct explanation of Assertion.
    C
    Assertion is true but Reason is false.
    D
    Assertion is false and Reason is true.

  • What are the microorganisms that breakdown the dead remains and waste product of organisms called?

    A
    Consumers
    B
    Producers
    C
    Decomposers
    D
    None of these

  • Assertion : Scavenging improves the environment . Reason : A scavenger disposes of dead organic matter .

    A
    If both A and R are true and R is the correct explanation of A .
    B
    If both A and R are true but R is not the correct explanation of A .
    C
    If A is true but R is false .
    D
    If both A and R are are false .

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    Explore conceptually related problems

    Organisms depend on the producers either directly or indirectly for their sustenance ? These organisms which consume the food produced, either directly from producers or indirectly by feeding on other consumers are the consumers. Consumers can be classed variously as herbivores, carnivores, omnivores and parasites. The microorganisms, comprising bacteria and fungi, break-down the dead remains and waste products of organisms. These microorganisms are the decomposers as they break-down the complex organic substances into simple inorganic substances that go into the soil and are used up once more by the plants. Give one example each of a herbivore, carnivore, omnivore and a parasite.

    Organisms depend on the producers either directly or indirectly for their sustenance ? These organisms which consume the food produced, either directly from producers or indirectly by feeding on other consumers are the consumers. Consumers can be classed variously as herbivores, carnivores, omnivores and parasites. The microorganisms, comprising bacteria and fungi, break-down the dead remains and waste products of organisms. These microorganisms are the decomposers as they break-down the complex organic substances into simple inorganic substances that go into the soil and are used up once more by the plants. What happens to the body/or a body part on death of the organism ?

    Organisms depend on the producers either directly or indirectly for their sustenance ? These organisms which consume the food produced, either directly from producers or indirectly by feeding on other consumers are the consumers. Consumers can be classed variously as herbivores, carnivores, omnivores and parasites. The microorganisms, comprising bacteria and fungi, break-down the dead remains and waste products of organisms. These microorganisms are the decomposers as they break-down the complex organic substances into simple inorganic substances that go into the soil and are used up once more by the plants. What do you infer about ecosystem from this information from the passage ?

    Assertion : Humus makes the soil fertile. Reason : Humus is rich in organic matter

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