They developed reproductive structures that included spores and seeds, and eventually led to in the development of the flower.
(They; developed; reproductive structures that included spores and seeds) (reproductive structures; included; spores and seeds) (They; led; to in the development of the flower; T:eventually)
They reproductive structures They
developed included led
reproductive structures that included spores and seeds
spores and seeds
to in the development of the flower T:eventually