Science News Desk – Plants have played a huge role in the development of life on earth. Although the word seed is used only for trees and plants, but in the literature the word seed has been used for the place of origin. But from the point of view of science, a question arises that from where did the first seeds of plants come on the earth. This question is very strange in itself, because how could the first seed have come without the tree and how could the first tree have come without the seed. Let’s try to know what science says about this?
The answer to this question is hidden in a word called the development of life. In this long process, changes keep taking place in the organisms over time, which the organisms bring to adapt to the changing environment. Organisms with better survival not only live longer, but also produce more children. All this happens under the principle of survival of the fittest. But the evolution of the seeds themselves also has its own story. Trees and plants started the work of spreading themselves through seeds 385 to 365 million years ago. That is, even before seeds came into existence, trees and plants existed.
Then how did the trees and plants flourish before that. The answer to our question is hidden in this answer. Before the advent of seeds, plants used spores called spores. Even today plants like algae, mosses, ferns contain spores. These fine brown particles are found on the underside of fern leaves. But they differ from the middle in some ways. Spores consist of only one cell whereas seeds consist of many cells and different cells also have different roles.
Where spores are produced from only one plant, on the other hand two plants contribute to the formation of the seed. That is, once germinated, the seed can flourish like its parent. But before this the spores have to go through a long process. When off the tree, they develop into a green cellular plate called a gametophyte, and the two gametophytes must unite to develop into a plant.
Moist conditions are favorable for gametophyte growth, so such trees thrive only in climates that are humid or have wet weather. That’s why the area around the river pond is also favorable for them. Many bacteria have a fork-like structure that helps them to move from one place to another.