pick one material that is moved within the body by organ systems describe which systems are involved and how they work together

Which of the following represents a negatively charged ion? of t 7

The negative change found inside the plasma membrane is created by potassium ions sodium ions hydrogen ions chlorine ions

Some tools have graduations to show multiple measurements. for example, a ruler may have graduations for both millimeters and centimeters. when measuring the length of an earthworm, which graduations would allow for the most accurate measurement? millimeters centimeters decimeters meters