Question

A pair of insectivorous plants are
A. Drosera and Rafflesia
B. Nepenthes and Bladderwort
C. Dionaea and Viscum
D. Venus Fly Trap and Rafflesia

Answer 1

Hint: Insectivores plants are plants that rely on insects as a source of nutrients. These plants employ a wide range of trapping mechanisms to lure their prey. Rafflesia and Viscum are parasitic plants.

Complete answer:
Insectivores plants are plants that obtain their nutrients primarily or partially from insects and other small creatures. These plants obtain energy from photosynthesis but only obtain nutrients from insects. These plants have evolved in such a way that it grows in adverse conditions where nutrients source is nil or exceptionally low and compensate for the lack of nutrients by evolving a carnivorous appetite. Nepenthes, also known as a tropical pitcher, is a species of carnivorous plant found mainly in Southeast Asian countries. This species of plants lure prey by producing attractive colours, nectar, and sweet scent and mostly prey on ants, spiders, and roaches. Utricularia, or widely known as bladderworts are freshwater insectivorous plants found in almost all geographical locations around the world. This species of plant preys on small protozoa, mosquito larvae, and other small aquatic organisms, by trapping them in a bladder-like trap.
a) Drosera or sundews are one of the most variegated species of insectivorous plants, which lure and trap prey with the help of their mucilaginous gland covering their leaves. They trap flies, insects, and butterflies.
b) Dinoea is a species of insectivorous plant which includes the Venus fly tray. This plant species is found in the USA and mainly preys on flies, arachnids, and bees. This plant shuts its leaves close when triggered by the presence of any movement on it.
Thus, the correct answer is option B.

Note: Insectivores plants only derive nutrients from insects, but derive energy from photosynthesis like other plants. These plants evolved a carnivorous behaviour to grow in adverse and unfavourable conditions. Rafflesia is a parasitic plant and found only in Southeast Asia, whereas Visum, also known as mistletoe is also a parasitic shrub that grows on trees.