Litmus solution is a purple dye which is extracted from lichen a plant belonging to the division ........

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Litmus solution is a purple dye, which is extracted from lichen, a plant belonging to the division ______.

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SSC MTS 7th October 2021 Shift-1

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Gymnosperms

Pteridophyta

Thallophyta

Bryophyta

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Explanation:

- Lichen: A symbiotic association between fungi and algae or cyanobacteria. Lichens are known for their ability to survive in harsh environments and are a prime source of natural dyes, including litmus.

- Option 1: Gymnosperms: These are seed-producing plants like conifers and cycads, lacking flowers and fruits.

- Option 2: Pteridophyta: This division includes ferns and horsetails. These plants reproduce via spores and have vascular tissues.

- Option 3: Thallophyta: This division typically includes non-vascular plants like algae, and they lack true roots, stems, and leaves. Lichens fall under Thallophyta due to their algal component.

- Option 4: Bryophyta: Non-vascular plants such as mosses and liverworts, generally found in damp areas.

The correct answer is:

Option 3: Thallophyta