Astudent 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 this possible?

How do energy and matter move through an ecosystem? both energy and matter unidirectionally flow through an ecosystem. both energy and matter cycle within an ecosystem. matter unidirectionally flows through an ecosystem, whereas energy cycles within an ecosystem. energy unidirectionally flows through an ecosystem, whereas matter generally cycles within an ecosystem.