Use the diagram below to answer the question. Which of the following would be considered the best index fossil?
A. Gastropod
B. Ammonite
C. Fern
D. Coral

How do the energy differences between the higher energy levels of an atom compare with the energy difference between the lower energy level of the atom

Which uses electromagnetic radiation to discover the properties and composition of bodies in space? space probe space station space shuttle space observatory

Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone