Table 1 shows features of two species of fish.
The Atlantic Bluefin Tuna is a highly active, fast-swimming pelagic predatory fish, while the Starry Flounder is a largely sedentary flatfish that lives on the seabed.
Table 1
| Fish | Mean body mass / kg\text{kg}kg | Mean gill surface area / m2\text{m}^2m2 |
|---|---|---|
| Atlantic Bluefin Tuna | 121212 | 54.054.054.0 |
| Starry Flounder | 2.52.52.5 | 3.003.003.00 |
Calculate how many times the gill surface area per unit of body mass of the tuna is greater than that of the flounder.
Give your answer to an appropriate number of significant figures.
Give one suggestion to explain this difference.
