Question

unit review - biodiversity
populations of rhinos, elephants, tigers, and lions have been negatively impacted by which human activity?
pictures and recordings
overfishing
unregulated hunting (poaching)

Explanation:

Rhinos are hunted for their horns, elephants for ivory, tigers and lions for various body - parts in illegal trade. Unregulated hunting (poaching) has severely reduced their populations. Pictures and recordings do not harm their populations, and overfishing affects aquatic species, not these land - based animals.

Answer:

C. unregulated hunting (poaching)