What is the range of length of sponges?

Options

A. 1 mm - 10 mm
B. 1 cm - 1 metre
C. 1 mm - 100 mm
D. 1 metre - 10 metre

Explanation

### Step-by-Step Solution:

1. **Understanding Sponges**: Sponges are aquatic animals that belong to the phylum Porifera. They are characterized by their porous bodies which allow water to flow through them.

2. **Identifying Size Range**: The length of sponges varies significantly. Some sponges are very small, measuring only a few centimeters in height, while others can grow to be much larger.

3. **Smallest Sponges**: The smallest sponges can be as little as 1 cm in height. This indicates that there are species of sponges that are quite tiny.

4. **Largest Sponges**: On the other end of the spectrum, some sponges can reach lengths of up to 1 to 2 meters. This shows that sponges can also grow to be quite large.

5. **Conclusion**: Therefore, the overall range of length for sponges is from 1 cm to approximately 1 m. This range encompasses both the smallest and the larger species of sponges.

6. **Final Answer**: The range of length of sponges is from 1 cm to 1 m.