Discuss criteria or measurements by which you might conclude that a population is better adapted after a certain evolutionary change than before.

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

When new rock is added to an oceanic ridge, the magnetized strips on either side of the ridge are evidence of sea-floor spreading. this is because the rocks on the two sides of the ridge o are equal in width and in polarity are polar opposites oare magnetized vary in width but are equal in polarity

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