Which of the following is NOT a way in which insectivorous plants obtain nutrients?

Insectivorous plants do not obtain nutrients by engulfing small animals like frogs and mice.

Insectivorous plants obtain nutrients through various mechanisms, including photosynthesis, absorbing nutrients from the soil, trapping and digesting insects, and sometimes even small aquatic creatures such as tadpoles. However, engulfing larger animals such as frogs or mice is not a method that insectivorous plants use to obtain nutrients, as their traps are typically only capable of capturing and digesting small insects.