What organ works to keep you blood plasma isotonic, so that your blood cells do not shrivel up or explode? liver
heart
kindneys
urinary bladder

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

Explain why biological control methods are generally environmentally superior to chemical pest control methods.

What is the term for a water wave that is created by an underwater earthquake?