The flowers of Fabaceae are

Options

A. Actinomorphic, complete, trimerous
B. Actinomorphic, incomplete, pentamerous
C. Zygomorphic, complete, trimerous
D. Zygomorphic, complete, pentamerous

Answer

To determine the characteristics of the flowers of the Fabaceae family, we need to analyze the options provided and understand the definitions of the terms used. Here’s a step-by-step solution:

### Step 1: Understand the Family
The Fabaceae family, also known as the legume, pea, or bean family, includes a variety of flowering plants. Recognizing this family is crucial as it helps us understand the general characteristics of its flowers.

### Step 2: Analyze the Options
We have four options to choose from regarding the nature of the flowers:
1. Actinomorphic and complete trimerous
2. Actinomorphic and incomplete pentamerous
3. Zygomorphic and complete trimerous
4. Zygomorphic and complete pentamerous

### Step 3: Define Key Terms
- **Actinomorphic**: Flowers that can be divided into two identical halves along multiple planes (radial symmetry).
- **Zygomorphic**: Flowers that can only be divided into two identical halves along one plane (bilateral symmetry).
- **Complete**: Flowers that have all four whorls (sepals, petals, stamens, and carpels).
- **Incomplete**: Flowers that lack one or more of the four whorls.
- **Trimerous**: Flowers with parts in multiples of three.
- **Pentamerous**: Flowers with parts in multiples of five.

### Step 4: Identify the Correct Characteristics
From the definitions, we can analyze the characteristics of Fabaceae flowers:
- Fabaceae flowers are known to be **zygomorphic** (bilateral symmetry).
- They are also **complete** (having all four whorls).
- The flower structure typically exhibits **pentamerous** characteristics (five petals).

### Step 5: Select the Correct Option
Given the analysis, the correct option that describes the flowers of the Fabaceae family is:
**Zygomorphic and complete pentamerous** (Option 4).

### Conclusion
The flowers of the Fabaceae family are zygomorphic and complete pentamerous.

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