Which is the first step that geologists must do to compare rock layers at distant locations? A) find the absolute age of rocks at both locations

B) compare a layer at one location to layers at other locations

C) identify index fossils in one or more layers at one location

D) collect fossils from different locations to study the organisms' lifestyles

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.