Among the following organisms which one has the shortest life span?

Options

A. Elephant
B. Giant Tortoise
C. Swan
D. Parrot

Answer

To determine which organism has the shortest lifespan among the given options, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Lifespan**: Lifespan is defined as the period from birth to natural death of an organism.

2. **List the Lifespan of Each Organism**:
- **Elephant**: Approximately 70 to 80 years.
- **Giant Tortoise**: Approximately 100 years.
- **Swan**: Approximately 20 to 30 years.
- **Parrot**: Lifespan varies depending on the species:
- **African Grey Parrot**: 40 to 60 years.
- **Amazon Parrots**: 25 to 75 years.

3. **Compare the Lifespans**:
- Elephant: 70-80 years
- Giant Tortoise: 100 years
- Swan: 20-30 years
- African Grey Parrot: 40-60 years
- Amazon Parrot: 25-75 years

4. **Identify the Shortest Lifespan**:
- Among the listed organisms, the swan has the shortest lifespan, ranging from 20 to 30 years.

5. **Conclusion**: Therefore, the organism with the shortest lifespan among the options provided is the **Swan**.

### Final Answer:
The organism with the shortest lifespan is the **Swan**.