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Question
The plants which are differentiated into roots, stems and leaves but do not bear flowers and seeds are classified as
The plants which are differentiated into roots, stems and leaves but do not bear flowers and seeds are classified as
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Solution
The correct option is B Pteridophytes
Pteridophytes are vascular plants and have leaves (known as fronds), roots and sometimes true stems, and tree ferns have full trunks. For example, ferns, horsetails and clubmosses. Fronds in the largest species of ferns can reach some six meters in length. Many ferns from tropical rain forests are epiphytes, which means they only grow on other plant species. Their water comes from the damp air or from rainfall running down branches and tree trunks. There are also some purely aquatic ferns such as water fern or water velvet (Salvinia molesta) and mosquito ferns (Azolla species). Thallophytes and bryophytes are not differentiated into roots, stems and leaves. Hydrophytes are differentiated into roots, stems and leaves and bear flowers and seeds.
Therefore, the correct answer is option C.
Pteridophytes are vascular plants and have leaves (known as fronds), roots and sometimes true stems, and tree ferns have full trunks. For example, ferns, horsetails and clubmosses. Fronds in the largest species of ferns can reach some six meters in length. Many ferns from tropical rain forests are epiphytes, which means they only grow on other plant species. Their water comes from the damp air or from rainfall running down branches and tree trunks. There are also some purely aquatic ferns such as water fern or water velvet (Salvinia molesta) and mosquito ferns (Azolla species). Thallophytes and bryophytes are not differentiated into roots, stems and leaves. Hydrophytes are differentiated into roots, stems and leaves and bear flowers and seeds.
Therefore, the correct answer is option C.
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