Question

ASSERTION: Insectivorous habitat of plants is to cope up $O_2$ deficiency.
REASON: Insectivorous plants are partly autotrophic and partly heterotrophic.
(A) Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
(B) Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
(C) Assertion is correct but Reason is incorrect
(D) Assertion is incorrect but Reason is correct

Answer 1

Hint: Insectivores are usually defined as organisms that feed on insects. Insectivorous plants are predators that prey on insects and other small animals for acquisition of nutrients. Carnivorous plants, also known as insectivorous plants, are a consequence of convergent evolution.

Complete Answer:
Carnivorous plants, also termed as insectivorous plants, are the result of convergent evolution. They can manufacture their own energy by the process of photosynthesis. However, they obtain nutrition by feeding on arthropods and minuscule organisms for the demand of nutrients. The carnivorous nature of such insectivores’ plants is a method and an adaptation to the reduced or inefficient soil composition. Evidently, Carnivorous plants are only seen in specific habitats where there are extremely low soil nutrients, especially nitrogen deficient soil, high humidity and temperature and waterlogged areas.

Now let us discuss about assertion given in question
Insectivorous plants have shown variations and evolved to develop in places where the soil is thin or poor in nutrients, especially nitrogen. They're found within nitrogen deficient soil. That's why they trap and digest insects to soak up nutrients. so insectivorous habitat is not used to cope up with oxygen deficiency. Thus, the given assertion is wrong.

Let us discuss the reason given in the question. Insectivorous plants are partly autotrophic and partly heterotrophic.
Insectivorous plants take their nutrition by feeding on insects and other organisms. They need to be adapted to grow in places where the soil is thin or poor in nutrients. So, they possess both autotrophic and heterotrophic nutrition. Insectivorous plants are plants that take some or most of their nutrients (but not energy, which they derive from photosynthesis) from trapping and consuming animals or protozoans, typically insects and other arthropods.
So, the given reason is exactly correct.

Hence the correct answer is option D.

Note: Insectivorous plants secrete and synthesize digestive enzymes that dissolve the insect for absorption. Others have bacteria or mites in their digestive tract that mimic the functions of the human digestive tract. They digest the prey for absorption by the plants.