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himura137
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why plant become dominately sporophyte rather than gametophyte? i am currently learning about mosses, fern, gymnosperm and angiosperms and i got stuck when trying to make a connection between them.
A sporophyte is a stage in the life cycle of a plant where the plant produces spores, which are reproductive cells. A gametophyte is a stage where the plant produces gametes, which are sex cells.
The sporophyte stage is dominant in plants because it allows for greater genetic diversity. This is because spores can be produced through meiosis, which results in genetic variation. Gametes, on the other hand, are produced through mitosis, which does not result in genetic variation.
The sporophyte stage allows for plants to produce a larger number of spores, which increases the chances of successful reproduction. This ensures the survival of the species and allows for adaptation to changing environments.
The evolution of vascular tissue and the ability to produce spores through meiosis were major factors that led to the dominance of the sporophyte stage in plants. Vascular tissue allowed for better nutrient transport and larger plant size, while spore production allowed for genetic diversity.
Yes, there are some plants, such as mosses and liverworts, that have a dominant gametophyte stage. However, these plants are typically smaller and less complex compared to plants with a dominant sporophyte stage.