Can some one help ill give 20 points

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

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above