Multiple Choice
How does the reproduction of seedless vascular plants differ from that of seed plants?
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28. Plants
Seedless Vascular Plants
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Which adaptation is found in seedless vascular plants but not in earlier non-vascular plants?
A
Lack of true roots, stems, and leaves
B
Production of seeds for reproduction
C
Dependence on water for fertilization
D
Presence of vascular tissues (xylem and phloem)
Verified step by step guidance1
Understand the distinction between non-vascular plants and seedless vascular plants. Non-vascular plants, such as mosses, lack specialized tissues for transporting water and nutrients, while seedless vascular plants, such as ferns, have vascular tissues.
Recognize the role of vascular tissues in plants. Vascular tissues include xylem, which transports water and minerals, and phloem, which transports sugars and other organic nutrients. These tissues allow seedless vascular plants to grow larger and inhabit a wider range of environments compared to non-vascular plants.
Identify the adaptations unique to seedless vascular plants. Unlike non-vascular plants, seedless vascular plants have true roots, stems, and leaves, which are supported by their vascular tissues.
Clarify why the other options are incorrect. For example, seedless vascular plants do not produce seeds; they reproduce via spores. Both seedless vascular plants and non-vascular plants depend on water for fertilization, so this is not a distinguishing feature.
Conclude that the presence of vascular tissues (xylem and phloem) is the key adaptation found in seedless vascular plants but not in earlier non-vascular plants.
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