The stamen is the male reproductive organ of a flower, and it consists of two main parts: the filament and the anther. The filament is a slender, thread-like structure that supports the anther, which contains the pollen grains.
The filament serves to elevate the anther and position it in a way that facilitates the dispersal of pollen. It is the structure that connects the anther to the rest of the flower, allowing the anther to be positioned for effective pollination.
Therefore, the correct answer for the stalk of the stamen is (B) Filament.
The correct answer is:
Option 2: Filament
The filament is the stalk of the stamen, which is the male reproductive organ of a flower. The stamen consists of two parts:
Anther: The part that produces pollen.
Filament: The stalk that supports the anther and holds it in place.
The other options are incorrect because:
Peduncle (Option 1) is the main stalk of the entire flower or inflorescence.
Pedicel (Option 3) is the stalk that supports an individual flower in an inflorescence.
Petiole (Option 4) is the stalk of a leaf, not the stamen.
Thus, the filament is the stalk of the stamen.
| Column I | Column II | ||
|---|---|---|---|
| 1. | Calotropis | p. | Invertebrates |
| 2. | Pisaster | q. | Distasteful |
| 3. | Monarch butterfly | r. | Cryptically colored |
| 4. | Frogs | s. | Cardioglycoside |
Match Column I and Column I
| Column I | Column II | ||
|---|---|---|---|
| 1 | Narrowly utilitarian argument | p | Conserving biodiversity for major ecosystem services |
| 2 | Broadly utilitarian argument | q | Every species has an intrinsic value and moral duty to pass our biological legacy in good order to future generation. |
| 3 | Ethical argument | r | Receiving benefits like food, medicine & industrial products. |
In the diagram of T.S. of Stele of Dicot Root, the different parts have been indicated by alphabets; choose the answer in which these alphabets correctly match with the parts they indicate:
