They are unicellular organisms
Their spores could be dispersed by wind
They are capable of living independent lives
They reproduce sexually only
Their bodies are made up of thallus and filaments alternatively
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Mucor is a fungi. While thallophytes are palnts. Therefore, mucor are not thallophytes.
Question: Why are Spirogyra and Mucor both grouped under Thallophyta?
Most Suitable Answer: Option C — They are capable of living independent lives.
Explanation:
Thallophyta are simple plants with no true roots, stems, or leaves (body called thallus).
Spirogyra (alga) and Mucor (fungus) are both independent organisms — they don't depend on other plants for food or shelter.
Other options are wrong:
A: Both are multicellular, not unicellular.
B: Spirogyra spores are not wind-dispersed (it's aquatic).
D: They reproduce both s*xually and as*xually.
E: Their bodies are thallus, not alternating thallus and filaments.
So the key reason for grouping them together is that both live independently.
Answer: C
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