Insect Growth and Metamorphosis Is Controlled by the Steroid Hormones

question 29

Essay

Insect growth and metamorphosis is controlled by the steroid hormones ecdysone and juvenile hormone (JH). In insects like butterflies and moths with a distinct larval (juvenile) and adult stage, the relative amount of JH determines whether the insect molts to the next juvenile stage or switches to become an adult. Can you think of a way to use this hormonal system to control caterpillar agricultural pests?

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Definitions:

Credit Balance

An accounting entry that appears on the right-hand side of an account, indicating that funds have been received or that an amount is owed.

Common Stock

Represents equity ownership in a corporation, providing voting rights and a share in the company's profits via dividends.

Consolidated Equipment

Assets, particularly machinery and equipment, reported in a unified manner for a parent company and its subsidiaries.

Net Assets

The total assets of an entity minus its total liabilities, representing the entity’s net worth or equity value.