Why did my mom say that when my grandpa was in the hospital the wiggly line went flat?

How can a driver best determine the safest speed to drive?

What system have glands found throughout the body that release hormones into the bloodstream

Which description best defines the nervous system and its two main branches? a: the message center of the body, split into the autonomic nervous system and the somatic nervous system b: the control panel of the body, split into the central nervous system and the exterior nervous system c: the message center of the body, split into the central nervous system and the peripheral nervous system d: the control panel of the body, split into the brain and the spinal cord