Which of the following are protandrous and protogynons flowers, respectively?

Options

A. Sunflower & cotton
B. Ficus & Aristolochia
C. Cotton and Ficus
D. Ficus ?& sunflower

Answer

To solve the question about which flowers are protandrous and protogynous, we can follow these steps:

### Step 1: Understand the Definitions
- **Protandrous Flowers**: These are flowers where the male reproductive organs mature before the female reproductive organs. This means that the pollen is released before the stigma is ready to receive it.
- **Protogynous Flowers**: In these flowers, the female reproductive organs mature before the male reproductive organs. This means that the stigma is ready to receive pollen before the pollen is released.

### Step 2: Identify Examples
- **Examples of Protandrous Flowers**: One common example is cotton. In cotton plants, the male parts (stamens) mature first, allowing for pollen release before the female parts (pistils) are ready.
- **Examples of Protogynous Flowers**: A well-known example is the fecal plant (often referred to as the "fecal flower"). In these flowers, the female parts (stigma) mature first, allowing them to receive pollen before the male parts (anthers) mature.

### Step 3: Match the Options
- Based on the definitions and examples, we can match the flowers to their respective categories:
- **Protandrous**: Cotton
- **Protogynous**: Fecal plants

### Step 4: Final Answer
- Therefore, the flowers that are protandrous and protogynous respectively are:
- Protandrous: Cotton
- Protogynous: Fecal plants