Biology - Human Body Systems - Endocrine system - Nervous vs Endocrine Communication

4 steps comparing the two communication systems. Step 1: 'Your body has TWO communication systems: Nervous (electrical signals through nerves) and Endocrine (chemical signals through blood).' Step 2: 'NERVOUS = FAST but SHORT. Like a phone call. Nerve signals travel at 100 m/s! Effect lasts millisec