Final answer:
The larger the cross-sectional area of a vessel, the lower the resistance and the lower the blood pressure.
Step-by-step explanation:
In biology, the statement that the larger the cross-sectional area of a vessel, the higher the blood pressure is false.
When a vessel branches into smaller vessels, the total cross-sectional area increases. This reduces the resistance in the branches and prevents the loss of pressure. Additionally, as the cross-sectional area increases, the average velocity of the blood in the smaller vessels decreases. This reduced velocity allows for effective substance exchange between the blood and cells.
In summary, the larger the cross-sectional area of a vessel, the lower the resistance and the lower the blood pressure.