Final answer:
Carnivorous plants, like the Venus flytrap, survive in nutrient-poor environments by capturing and digesting insects for essential nutrients.
Step-by-step explanation:
Plants that cannot create their own food but take food from other plants by stings are known as carnivorous plants. These plants have adapted to survive in nutrient-poor environments, such as swamps and bogs, where the soil lacks essential nutrients. Carnivorous plants, like the Venus flytrap and sundews, capture insects and use them as a supplementary source of nutrients, especially nitrogen and phosphorus. The plants have specialized leaves or tentacles that secrete sticky fluid to attract and trap insects, which are then digested by the plants.