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A true moss is that -...

A true moss is that -

A

Which has.leafy, radially symmetrical body and grows in tufts. Plant body has an axis with spirally arranger' leaves

B

Which has a protonema stage and multicellular rhizoids with oblique septa

C

Both a and b

D

Which has vascular tissues

Text Solution

AI Generated Solution

The correct Answer is:
To determine what constitutes a true moss, we need to analyze the characteristics of mosses and the options provided in the question. ### Step-by-Step Solution: 1. **Understanding Mosses**: True mosses belong to the group called Bryophytes. They are non-vascular plants that reproduce via spores and have a dominant gametophyte stage in their life cycle. 2. **Analyzing the Options**: - **Option 1**: "Which has leafy, radially symmetrical body and grows in tufts. Plant body has an axis with spirally arranged leaves." - This description fits true mosses. They indeed have a leafy structure and grow in tufts, with leaves arranged spirally around a stem-like axis. - **Option 2**: "Which has a protonema stage and multicellular rhizoids with oblique septa." - This is also a characteristic of true mosses. The protonema is the first stage of the moss life cycle, developing from spores, and the multicellular rhizoids help anchor the moss to the substrate. - **Option 3**: "Both A and B." - Since both options 1 and 2 accurately describe true mosses, this option is also correct. - **Option 4**: "Which has a vascular tissue." - This option is incorrect because true mosses do not have vascular tissues; vascular tissues are found in higher plants like pteridophytes. 3. **Conclusion**: The correct answer is **Option 3: both A and B**, as both characteristics accurately describe true mosses. ### Final Answer: A true moss is that which has a leafy, radially symmetrical body and grows in tufts, and also has a protonema stage and multicellular rhizoids with oblique septa. Thus, the correct option is **Option 3: both A and B**.
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