answer:Some common gastropod species found in freshwater ecosystems include pond snails (Lymnaeidae), ramshorn snails (Planorbidae), and mystery snails (Thiaridae).

answer:Some people get tattoos and piercings as a form of self-expression, personal style, cultural or religious significance, or to commemorate a specific event or person.

answer:Amines act as bases and react with acids to form salts. They also react with strong bases to form salts known as quaternary ammonium compounds.

answer:Music played an important role in Andean civilizations, with ceremonial and ritual music being used to communicate with deities and ancestors. Over time, Andean music evolved to incorporate Spanish and African influences during colonial times, and later fused with Western styles such as jazz and rock in modern times.