Botany : Plants :: Entomology : ?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → Insects
The pair is a science : what it studies. Botany is the study of plants, and in the same way entomology is the study of insects (from the Greek entomon, insect).
The study of germs (micro-organisms) is microbiology, of birds ornithology, and of snakes ophiology (a branch of herpetology).