What conclusion can be drawn if a species of plant grew best between 18°C and 26°C?

The conclusion that can be drawn from the information provided is that the optimal growth range for the plant is between 18°C and 26°C. This indicates that the plant exhibits the best growth rate and health within this temperature range, suggesting that it is well-adapted to thrive in these specific conditions.

This optimal range indicates that outside of these temperatures, the plant may experience reduced growth or stress, but the range itself represents the most favorable conditions for its development. Understanding the optimal growth temperature is essential for effective cultivation and care of the plant, allowing gardeners or farmers to create the ideal environment for its success.