Which of the following is a definition of motion?
a. a change in position over time
b. a location compared to other locations
c. the length of the path between points
d. the speed and direction of an object

What is mitosis and how does it affect change

Name the glands associated with human digestive system

How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures