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    Question

    Which structures are not endocrine organs of insects?

    A Corpora cardiaca Correct Answer Incorrect Answer
    B Prothoracic glands Correct Answer Incorrect Answer
    C Salivary glands Correct Answer Incorrect Answer
    D Ventral ganglia Correct Answer Incorrect Answer

    Solution

    There is another type of gland called an exocrine gland (e.g. sweat glands, lymph nodes). These are not considered part of the endocrine system as they do not produce hormones and they release their product through a duct.

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