Carnivorous Plants / Insectivorous Plants. ... These plants obtain some nutrients by trapping and digesting various invertebrates, and occasionally even small frogs and mammals. Because insects are one of the most common prey items for most carnivorous plants, they are sometimes called insectivorous plants.

The correct option is (a) Soil deficient in nitrogenous compounds.

Explanation:

Insectivorous plants are those plants that derive their nutrients from insects and other small animals they capture. These plants have adapted themselves to grow in soil that lacks essential nutrients like nitrogen, phosphorus, and other trace elements. The soil in which these plants grow is usually acidic, and they have a high concentration of humic acid. The adaptation of insectivorous plants to nutrient-deficient soil is known as Carnivorous syndrome.

Adaptations of Insectivorous Plants:

1. Modified leaves: Insectivorous plants have modified leaves that are used for trapping insects. These leaves are modified in different ways, depending on the type of plant. For example, Venus Flytrap has modified leaves that have two lobes with hair-like structures that act as trigger hairs. When an insect touches these hairs, the lobes of the leaves snap shut, trapping the insect.

2. Digestive enzymes: Insectivorous plants produce digestive enzymes that help them break down the insects they capture. These enzymes are secreted by specialized cells in the leaves, and they help break down the proteins and other organic compounds of the insect.

3. Ability to absorb nutrients: Insectivorous plants have specialized cells that can absorb the nutrients from the insects they capture. These cells are located in the leaves, and they help the plant derive the essential nutrients like nitrogen, phosphorus, and other trace elements.

4. Modified root system: Insectivorous plants have modified root systems that are adapted to nutrient-poor soil. These plants have specialized roots that are used to absorb nutrients from the insects they capture. The roots of these plants are also adapted to absorb water from the soil.

Conclusion:

Insectivorous plants are adapted to nutrient-deficient soil, which is why they have evolved to capture and digest insects. These plants have unique adaptations that help them survive in harsh conditions, and they are a fascinating example of how plants have evolved to overcome environmental challenges.

Insectivorous plants are usually adapted to nitrogen deficient region to cope up with the deficiency of nitrogenous compound by eating insects .....