Which of the following is an example of a threatened species?

The Eastern Massasauga, Leedy's Roseroot, Sprague's Pipit, and Canada Lynx are all species that have been evaluated regarding their conservation status. The correct answer, Leedy's Roseroot, is recognized as a threatened species, primarily due to its limited distribution and specific habitat requirements. It is found in a restricted range, primarily in certain regions of North America, where it is vulnerable to habitat loss and environmental changes.

This species is a succulent plant commonly located in rocky or cliff areas, which makes it particularly susceptible to factors such as habitat destruction from urban development or changes in land use. Conservation efforts are critical for the Leedy's Roseroot to mitigate threats and ensure its survival, highlighting the importance of recognizing and protecting threatened species to maintain biodiversity.

The other species mentioned, while they may be of conservation concern or have specific protective statuses, do not fit the classification of threatened in the same way as Leedy's Roseroot does, which directly impacts its eligibility under specific conservation laws and programs aimed at protecting such species.