1. (C) Smooth endoplasmic reticulum Smooth endoplasmic reticulum in the liver cells of vertebrates helps in detoxification. It metabolizes various toxic or toxic substances such as drugs, aspirin, pesticides (DDT), petroleum products and pollutants. These toxic substances enter the body of animals throRead more

    (C) Smooth endoplasmic reticulum
    Smooth endoplasmic reticulum in the liver cells of vertebrates helps in detoxification. It metabolizes various toxic or toxic substances such as drugs, aspirin, pesticides (DDT), petroleum products and pollutants. These toxic substances enter the body of animals through food, air or water.

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  2. (B) Calcium and phosphorus : Bone cells are embedded in a rigid matrix, strengthened by fibers, and hardened by calcium and phosphorus salts. The matrix is deposited as concentric layers of lamellae formed around the central Haversian canal.

    (B) Calcium and phosphorus
    : Bone cells are embedded in a rigid matrix, strengthened by fibers, and hardened by calcium and phosphorus salts. The matrix is deposited as concentric layers of lamellae formed around the central Haversian canal.

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  3. The rate of decomposition is regulated by climatic factors like temperature and soil moisture as they have an effect on the activities of soil microbes. The tropics with its hot and humid climatic condition provides an environment which is ideal for the microbes to speed up the process of decompositRead more

    The rate of decomposition is regulated by climatic factors like temperature and soil moisture as they have an effect on the activities of soil microbes. The tropics with its hot and humid climatic condition provides an environment which is ideal for the microbes to speed up the process of decomposition.

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