Because that I was a teacher in Yale University in New Jersey, I can explain that like this way:
Fossilized spores suggest that higher plants (embryophytes) have lived on the land for at least 475 million years.[3]Early land plantsreproducedsexually with flagellated, swimming sperm, like the green algae from which they evolved. An adaptation to terrestrialization was the development of upright meiosporangia for dispersal by spores to new habitats. This feature is lacking in the descendants of their nearest algal relatives, the Charophycean green algae. A later terrestrial adaptation took place with retention of the delicate, avascular sexual stage, the gametophyte, within the tissues of the vascular sporophyte. This occurred by spore germination within sporangia rather than spore release, as in non-seed plants. A current example of how this might have happened can be seen in the precocious spore germination in Sellaginella, the spike-moss. The result for the ancestors of angiosperms was enclosing them in a case, the seed. The first seed bearing plants, like the ginkgo, and conifers (such as pines and firs), did not produce flowers. The pollen grains (males) of Ginkgo and cycads produce a pair of flagellated, mobile sperm cells that "swim" down the developing pollen tube to the female and her eggs.Nomenclature of angiosperm is genus,where angiosperms are seed-bearing vascular plants.
Flowers and Fruits
Naked Seeds.
yes. xylem tracheid occur in all plants included lower plant, gymnosperms and angiosperms. angiosperms had evolved to have another kind of xylem, that is xylem vessel, which is better in transport water, but tracheids still remain in angiosperms.
The plant angiosperms produce flowers
Peony are angiosperms.
a. algae b. fern allies c. ferns d. angiosperms e. gymnosperms Answer= d. angiosperms
Yes, peaches are considered angiosperms. They are the products from flowers on trees, which are angiosperms, or flowering plants.
the name is called dandlion
people use angiosperms by consuming and reproducing one another
yes. xylem tracheid occur in all plants included lower plant, gymnosperms and angiosperms. angiosperms had evolved to have another kind of xylem, that is xylem vessel, which is better in transport water, but tracheids still remain in angiosperms.
Angiosperms
angiosperms
Angiosperms produce ovary and embryo sac which gymnosperms do not.
flowers,apple,fruit
chodata
Angiosperms
Land animal depend on angiosperms for the fruit. At the same time angiosperms rely on animals to carry the fruit to another location to plant the seeds.
Angiosperms.
The plant angiosperms produce flowers