The table below shows the fossils of organisms found in various layers of an undisturbed rock: Which statement about the organisms whose fossils are found in the rock is correct?

A: Organism W existed much before Organism Y

B: Organism Y existed over the longest period of time

C: Organism Y and Organism U were alive over the same time span

D: Organism W existed over a shorter period of time than did organism X

Why are fossils of organism's from the phanerozoic eon much more likely to be found than fossils of organisms from any other eon? a. more organisms present during the phanerozoic eon had soft body parts. b. organisms present during the phanerozoic eon were all microscopic. c. more organisms present during the phanerozoic eon had hard body parts. d. organisms present during the phanerozoic eon are the most ancient life forms.

Air masses are characterized by various properties including temperature humidity air temperature pressure and wind speed . which of the following air masses is associated with low relative humidity and high temperature

Explain the value of statistics and other data to positive economics and to normative economics