Question

which best explains the evolution of gymnosperm plants?
they evolved at the same time as monocots and dicots.
they evolved after the seeded flowering plants.
they evolved after the seedless vascular plants.
they evolved before the seedless nonvascular plants.

Explanation:

Gymnosperms are seed - bearing plants. Seedless vascular plants (like ferns) evolved before gymnosperms. Monocots and dicots (angiosperms) evolved after gymnosperms. Seeded flowering plants (angiosperms) are a later evolutionary development than gymnosperms. Seedless non - vascular plants (like mosses) are more primitive than seedless vascular plants and gymnosperms.

Answer:

They evolved after the seedless vascular plants.