Analogy

An ornithologist studies birds, and similarly, an anthropologist studies human beings or culture. Insects fit within the category of living organisms, making Anthropologist : Insects the most appropriate analogy.

A cynosure attracts attention due to its brilliance, and similarly, a magnet attracts due to its magnetic properties.

Multiplication is the reverse of division, similar to how increase is the reverse of decrease. Both are opposites in the respective operations.

An actor performs a soliloquy, just as a musician performs a solo piece of music.