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Assertion : The fungi are widespread in ...

Assertion : The fungi are widespread in distribution and they even live on inside other plants and animals.
Reason : Fungi are able to grow anywhere on land, water or on other organisms because they have a variety of pigments, including chlorophyll, carotenoids, fucoxanthin and phycoerythrin.

A

If both the assertion and the reason are true and the reason is a correct explanation of the assertion

B

If both the assertion and reason are true but the reason is not a correct explanation of the assertion

C

If the assertion is true but the reason is false

D

If both the assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
C
Fungi are considered ubiquitous i.e., they occur in a variety of habitats. Most of them are moisture loving and terrestrial and few (e.g., Monoblepharis) are aquatic. Fungi may be epiphytic (i.e., live on plants e.g., Armillaria), saprophytic (i.e., grow in dead organic matter e.g., Mucor), symbiotic (i.e., live with association with other plants e.g., lichenm mycorrhiza) and predacious (e.g., Dactyldela) and parasitic (e.g., Erysipi) fungi are non-chlorophyllus i.e., devoid of chlorophyll hence cannot prepare their own food. They are heterotrophic and show absorptive type of nutrition.
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First read a passage and then answer the questions following that passage. Soil scientists have shown that the soil teems with millions of living things, many of them useful, others harmful. The living things which are useful include earthworms and various kinds of bacteria. Earthworms loosen the soil and so enable air and water to enter it. Bacteria, which are microscopic living things break down dead plants and animals and make humus, or take nitrogen from the air and change it into substances that plants use. The living things that do harm include other bacteria and fungi which cause diseases. Other harmful things are pests such as wire worms which feed on the roots of grass and other plants. While the farmer can usually keep weeds in check by careful cultivation, this alone may not protect his crops from insects, pests and diseases. Nowadays, however, he is much better able to control these enemies. He may plant. specially resistant types of seeds or he may keep the pests and diseases in check with chemicals. With better seeds farmers have been able to increase their crop yield . They can grow crops that ripen more quickly and have a stronger resistance to disease, frost or drought. Farmers are always careful