Which one of the following organisms reproduce sexually only once in its life time?

Options

A. Banana plant
B. Mango
C. Tomato
D. Eucalyptus

Explanation

To solve the question of which organism reproduces sexually only once in its lifetime, we can follow these steps:

### Step 1: Understand the Question
We need to identify an organism from the given options that reproduces sexually only once throughout its entire life.

### Step 2: Analyze the Options
Let’s consider the organisms mentioned in the options:

- **A. Banana Plant**: The banana plant is known to be a perennial plant. It reproduces sexually only once in its lifetime, after which it typically dies. The subsequent reproduction is often through a process called parthenocarpy, where fruit is produced without fertilization.

- **B. Mango Plant**: The mango plant is also a perennial plant. It can reproduce sexually multiple times throughout its life, as it continues to grow and flower for several years.

- **C. Tomato Plant**: The tomato plant is generally considered an annual plant, but it can also be grown as a perennial in some climates. However, it can reproduce multiple times during its life cycle.

- **D. Eucalyptus**: Eucalyptus trees are typically considered annual or perennial, but they can reproduce sexually multiple times within their life cycle, which usually lasts more than a year.

### Step 3: Identify the Correct Answer
From the analysis, the only organism that reproduces sexually only once in its lifetime is the **Banana Plant**. After it reproduces, it typically dies, and any further reproduction occurs through parthenocarpy.

### Conclusion
The organism that reproduces sexually only once in its lifetime is the **Banana Plant**.

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