However, mitotic division still follows meiosis in the sporophyte, resulting in a multicellular gametophyte, which produces eggs or sperm. Gymnosperms include vascular land plants and softwood trees that do not have flowers and fruit. There are many examples, in nature, of angiosperms. The flowers are the reproductive organs for the plant, providing them with a means of exchanging genetic information. In angiosperms, meristematic tissue is responsible for growth. Justify the reason for their separate classification. Angiosperms. Gymnosperm seeds are exposed while angiosperms seeds are enclosed in fruit. With around 300,000 species, they represent approximately 80 percent of all the known green plants now living. Polyembryony is of common occurrence. The stigma contains two cells: a generative cell and a tube cell. Ovules are naked or exposed, sessile, straight (orthotropous) and unitegmic. Whereas gymnosperms have no flowers or fruits and have naked seeds on the surface of their leaves. Flowers can be unisexual (e.g., male flowers and female flowers) or bisexual (the flower has both male and female parts). Their wood is softer than that of angiosperms and is used to make paper and lumber. This group of organisms are part of the same common ancestor. We'll assume you're ok with this, but you can opt-out if you wish. They are naked. Sexual reproduction is important in angiosperms as it produces most of the genetic variations that allow plants to evolve with better adaptations to their environment. Paraphyletic groups are those in which not all descendants of a single common ancestor are . Their color and fragrance serve to attract insects and other animal pollinators. Following are the important difference between angiosperms and gymnosperms: //
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