How does the study of genetics and DNA help the study of evolution

What is a traditional chinese touch therapy involving finger pressure applied to specific areas of the body to restore the flow of qi.

Why do oceanic plates tend to subduction when colliding with a continental plate

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.