As the number of angiosperm species rose, what happened to the number of species of most other groups of land plants?

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As the number of angiosperm species rose, the competition for resources increased, leading to a decrease in the number of species of most other groups of land plants. This is because angiosperms were able to outcompete other groups due to their superior reproductive abilities and adaptations such as flowers, fruits, and efficient water and nutrient uptake.

As the Number of Angiosperm Species Rose, What Happened to the Number