Endrocrine glands of insects which secrete juvenile hormone are

Options

A. Corpora allata
B. Corpora albicans
C. Corpora myecaene
D. All the above.

Answer

**Step-by-Step Solution:**

1. **Understanding Juvenile Hormone**: Begin by defining what juvenile hormone is and its role in insects. Juvenile hormones are crucial for the growth and development of larvae in insects. They help in maintaining the larval stage and prevent premature metamorphosis into adult forms.

2. **Function of Juvenile Hormone**: Explain the function of juvenile hormones. They play a significant role in the production of eggs in female insects and ensure that larvae grow properly by inhibiting the process of metamorphosis.

3. **Location of Endocrine Glands**: Identify where juvenile hormones are produced. In insects, these hormones are secreted by a pair of endocrine glands located behind the brain.

4. **Identifying the Correct Gland**: The specific gland responsible for the secretion of juvenile hormone is known as the corpora elata.

5. **Conclusion**: Based on the information gathered, the answer to the question regarding the endocrine glands of insects that secrete juvenile hormone is "corpora elata".

**Final Answer**: The endocrine glands of insects which secrete juvenile hormone are **corpora elata**.

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