Lupinus arcticus is an example of

Options

A. 2000 years old viable seed
B. plants that produce flowers once in its lifetime.
C. plants that produces smallest pollen.
D. 10000 years old viable seed

Answer

### Step-by-Step Solution

1. **Understanding the Question**: The question asks what Lupinus arcticus is an example of. To answer this, we need to identify the characteristics or notable features of Lupinus arcticus.

2. **Identifying Lupinus arcticus**: Lupinus arcticus is a plant species that is found in the Arctic tundra. It is known for its ability to produce seeds that have a very long viability period.

3. **Researching Seed Viability**: Seed viability refers to the ability of seeds to germinate after a certain period. Some seeds can remain viable for thousands of years under the right conditions.

4. **Finding Relevant Examples**: The video transcript mentions that Lupinus arcticus has been found to have seeds that can remain viable for up to 10,000 years. This is a significant example of long seed viability.

5. **Eliminating Incorrect Options**: The other options provided in the question relate to:
- Plants that flower once in a lifetime (e.g., bamboo).
- Plants that produce the smallest pollen.
- A 2000-year-old viable seed (e.g., date palm).
These options do not pertain to the long seed viability characteristic of Lupinus arcticus.

6. **Conclusion**: Based on the evidence, Lupinus arcticus is an example of a plant with extremely long seed viability, specifically noted for its seeds being viable for up to 10,000 years.

### Final Answer
Lupinus arcticus is an example of a plant with long seed viability, specifically noted for having seeds that can remain viable for up to 10,000 years.

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