Plant life cycles
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There is a wide variety of plant species in the world.
Some produce seeds; others (like ferns) do not. Ferns release single-celled spores, not multi-celled seeds.
Plant species that produce seeds can be classified as flowering plants (plants that produce flowers and whose seeds are enclosed in fruits) or gymnosperms (which means "naked seeds", whose seeds are not enclosed in any structure).
A general life cycle of a flowering plant is shown at http://theseedsite.co.uk/lifecycle.html. This link will open in a separate window or tab. Look at the steps in this life cycle and read the descriptions of different types of plant life cycles at the bottom of the page.
Note that this life cycle shown the plant dying before its seeds germinate to form new plants. Would all plants die before their seeds germinate?