Queens of bombus affinis is ____________ for Aquilegia spurs.

Options

A. (a) Pollinator
B. (b) Pollen Robber
C. (c) Nectar Robber
D. (d) More than one option is correct

Answer

To solve the question, "Queens of Bombus affinis is ____________ for Aquilegia spurs," we need to analyze the relationship between the bumblebee (Bombus affinis) and the plant (Aquilegia spurs).

### Step-by-Step Solution:

1. **Identify the Organisms**:
- Bombus affinis is a species of bumblebee.
- Aquilegia spurs refers to the plant commonly known as Columbine.

2. **Understand the Relationship**:
- Bumblebees are known to feed on the nectar and pollen of flowers, including those of the Columbine plant.
- In many cases, bumblebees are pollinators, meaning they help in the pollination process of the flowers while feeding.

3. **Evaluate the Specific Case**:
- In the case of Bombus affinis and Aquilegia, it has been noted that while the bumblebee feeds on the plant’s resources, it does not effectively pollinate the flowers.
- This creates a situation where the bumblebee is taking resources (nectar and pollen) without providing the mutual benefit of pollination.

4. **Terminology**:
- The term "pollen robber" can be used to describe this behavior where the bumblebee takes pollen without contributing to the pollination of the plant.
- Similarly, "nectar robber" can also apply as the bumblebee extracts nectar without aiding in reproduction.

5. **Conclusion**:
- Since Bombus affinis is not providing the expected pollination service to Aquilegia but is instead taking from it, the correct term to fill in the blank is that it is a "pollen robber" and "nectar robber."

6. **Final Answer**:
- Therefore, the complete statement is: "Queens of Bombus affinis is **a pollen robber** for Aquilegia spurs."