Why would an organism want to call attention to itself?

Why do carbohydrate molecules function so well as fuel for the body?

What is the role of the phospholipid belayer in cellular transport in living cells

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