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Define Tigellum...

Define Tigellum

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**Step-by-Step Solution:** 1. **Understanding the Context**: The term "Tigellum" is related to the structure of an embryo in flowering plants, specifically within the context of monocots and dicots. 2. **Defining the Embryonal Axis**: In both monocot and dicot embryos, there exists a structure known as the embryonal axis. This is a central part of the embryo that plays a crucial role in its development. 3. **Identifying the Tigellum**: The Tigellum is defined as the embryonal axis itself. It serves as the central part to which the cotyledons are attached. ...
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