SSC Ecology And Environment Sample Paper NCERT Sample Paper-4

  • question_answer
    Path of energy flow in an ecosystem is

    A)  Herbivores - producers - carnivores - decomposers

    B)  Herbivores - carnivores - producers - decomposes

    C)  Producers - carnivores - herbivores - decomposes

    D)  Producers - herbivores - carnivores - decomposers

    Correct Answer: D

    Solution :

    [d] Plants are called producers. This is because they produce their own food! They do this by using light energy from the Sun, carbon dioxide from the air and water from the soil to produce food - in the form of glucose/sugar. The process is called photosynthesis. Animals are called consumers. This is because they cannot make their own food, so they need to consume (eat) plants and/or animals. There are 3 groups of consumers. Herbivores: Animals that eat only plants. Carnivores: Animals that eat only animals. Omnivores. Animals that eat both animals AND plants. Humans are also omnivores! Decomposers: Bacteria and fungi are decomposers. They eat decaying matter - dead plants and animals and in the process they break them down and decompose them. When that happens, they release nutrients and mineral salts back into the soil - which then will be used by plants.

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