A student found a map of polar bear movements online. Each bear's position is signaled from a collar on its neck, via satellite, to scientists and then to the website. Which technology makes it possible to identify the precise location of each polar bear?
AEnvironmental DNA (eDNA) surveillance
BAn unmanned aerial system (UAS)
CA geographic information system (GIS)
DThe Global Positioning System (GPS)
AEnvironmental DNA (eDNA) surveillance
BAn unmanned aerial system (UAS)
CA geographic information system (GIS)
DThe Global Positioning System (GPS)