Final answer:
Most cases of bleeding require more than direct pressure to stop because bleeding is controlled by the process of hemostasis.
Step-by-step explanation:
Most cases of bleeding require more than direct pressure to stop. This is because bleeding is controlled by a process called hemostasis, which involves multiple steps. Initially, the body responds to bleeding by initiating mechanisms to increase blood pressure and maintain blood flow. However, ultimately, blood volume needs to be restored either through physiological processes or medical intervention.