What is the larger number in ecosystem

The idea of spontaneous generation was disproved by in a experiment involving jars of meat

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.

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