Imagine that at the beginning of time on Earth, frogs were all different colors of the rainbow. Over generations almost all frogs became green because the color camouflaged them in their leafy environments. This is an example of

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 how paleontologists use trilobite fossils as index fossils for various geologic time periods.

Why were the results whit just water so much different than the trials with the detergent ?