BIOLOGICAL CLASSIFICATION
KINGDOM PLANTAE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Nonvascular plants
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Seedless vascular plants
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Seeded vascular plants
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Nonvascular plants
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Detailed explanation-1: -Seedless Vascular Plants. By the Late Devonian period (385 million years ago), plants had evolved vascular tissue, well-defined leaves, and root systems. With these advantages, plants increased in height and size.
Detailed explanation-2: -Nonvascular plants were the first plants to evolve. Compared to other plants, their small size and lack of specialized structures, such as vascular tissue, stems, leaves, or flowers, explains why these plants evolved first.
Detailed explanation-3: -The first fossils that show the presence of vascular tissue date to the Silurian period, about 430 million years ago.
Detailed explanation-4: -Gymnosperms were the first seed plants to have evolved. The earliest seedlike bodies are found in rocks of the Upper Devonian Series (about 382.7 million to 358.9 million years ago). During the course of the evolution of the seed habit, a number of morphological modifications were necessary.