How plants grown ?

Question

After we humans came to earth we saw that plants are already grown. But how the plants had grown, plants come from the seed and seed comes from a plant and so on. my question is how plants had grown before we came ?

Answer 1

That would have been day 3 of creation.

Answer 2

good land,water,than good admasphire

Answer 3

the seed is kept in the oil, the seed needs moisture, warmth, and minerals in order to germinate, at first the roots come out then with enough minerals, moisture, warmth, and CO2 the stem will sprout, then the lefs will come out and start to photosynthesise (making glucose using light), the the flower will sprout attract insects, which will pollonate it, and then the flower dies but a seed is found, and from the seed the plant cycle will begin again

Answer 4

Hi Undertaker,

Because we weren't there and there is not a clear fossil record, we can only take an educated guess as to what occurred.

Most botanist believe that plants as we know them today, originated from blue-green algae (or organisms that resembled it).

Blue-green algae have cells that are prokaryotic (lack a true nuclei and nuclear membrane); whereas, the plants and animals have the more advanced eukaryotic cells (these first appear in the fossil record .5 billion years ago and resemble green algae with photosynthetic cells.

The "spark" that scientists believe led to the development of multicellular plants (and then animals) was this development of the eukaryotic cell.

Plants also (as with animals) find niches within which they flourish and started with development of the lower plants; such as, fungi (the decomposers of the plant world); bryophytes (these plants possess a greater specialization of tissues than the algae and have distinct leaf-like forms); tracheophytes (which once dominated forests in the forms of small, fern-like and tree-like plants with two-layered bark and branches of the stem).

Today the tracheophytes are small and herbaceous.

Then came the horsetails, ferns and gymnosperms (naked seed) plants.  After a few more evolutions of plants like the cycads, ginkgos and conifers.

Finally, we start to see the angiosperms about 135 million years ago.  The flowers of these plants probably were leaves that transformed into what would become the plant's sexual organ.

I hope this helps.

Hiking Tony