Androecium and gynoecium are `"__________________"` of a flower.

Options

A. Essential whorls
B. Accessory whorls
C. Non-essential whorls
D. All of these

Answer

To answer the question "Androecium and gynoecium are '__________________' of a flower," we can follow these steps:

### Step 1: Understand the Terms
- **Androecium**: This is the male reproductive part of a flower, consisting of stamens.
- **Gynoecium**: This is the female reproductive part of a flower, consisting of carpels.

### Step 2: Identify Their Role in the Flower
- Both androecium and gynoecium are essential components of a flower. They are responsible for reproduction, with the androecium producing pollen (male gametes) and the gynoecium containing ovules (female gametes).

### Step 3: Classify the Flower Parts
- Flowers are typically classified based on their reproductive structures. A flower that contains both androecium and gynoecium is referred to as a perfect flower or a complete flower.

### Step 4: Define Accessory Whorls
- The term "accessory whorls" refers to the additional parts of the flower that are not directly involved in reproduction. These include the calyx (sepals) and corolla (petals).

### Step 5: Conclusion
- Given that the question asks for a term that encompasses both androecium and gynoecium, we can conclude that they are part of the "accessory whorls" of a flower.

### Final Answer
Androecium and gynoecium are "accessory whorls" of a flower.

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