ESSAY : GYMNOSPERM
Gymnosperm means naked seed . a gymnosperm seed is “naked” because it
lacks a protective fruit covering . such as the pulpy fruit tissue around apple
seeds . gymnosperms include cycads, ginkgoes, and conifers. Cycads include only
a few surviving species that live in tropical or warm temperature zone.
Numerous species of cycads flourished during earlier when dinosaurus dominated
the earth . a cycad looks like a small palm tree , but cycads produce large ,
seed bearing , conelike structure then ginkgoes are deciduous wich means thah
the leaves are shed each year. And conifers get their name from the fact that
they bear their seeds in cones . the are by far the most varied and widely
distributed gymnospermae.
Life cycle of a gymnosperms the sporophyte is large, while the
gametophyte consist of only a few cells . the life cycle in cycads and ginkgoes
is similar to that in conifers , but the structures that produce seeds are foun
on sparate plants from the structure that produce poken.
example life cycle gymnos :
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