In effect, these pollination vectors “help” a plant have a mobile sex life. Describe how angiosperms have adapted to living on land. Angiosperm, any of about 300,000 species of flowering plants, the largest and most diverse group in the plant kingdom. There are 5 periods of land plants: + Origin of land plants (microscopic) --> Silurian-Devonian explosion (all lineages of land plants with vascular structures and roots) --> Carboniferous period (carbon-rich rock with spores, branches, tree trunks) --> Diversification of gymnosperms --> Diversification of angiosperms (flowering plants). Angiosperms are vascular seed plants in which the ovule is fertilized and develops into a seed in an enclosed ovary. Water has been described as “the stuff of life.” The cell’s interior—the medium in which most small molecules dissolve and diffuse, and in which the majority of the chemical reactions of metabolism take place—is a watery soup. The sporophyte which is the dominant plant in the life-cycle is differentiated into roots, stem and leaves. Gymnosperms are seed plants adapted to life on land; thus, they are autotrophic, photosynthetic organisms that tend to conserve water. Why would being an angiosperm be an adaptation on land? Plants and Plant Food Living things depend on food for just about everything. (Wind-pollinated plants, such as grasses, tend to grow in thick stands; pollen is shed in copious amounts and rarely travels more than 100 meters.) Although angiosperms (flowering plants) are the major form of plant life in most biomes, gymnosperms still dominate some ecosystems, such as the taiga (boreal forests) and the alpine forests at higher mountain elevations because of their adaptation to cold and dry growth conditions. Refer to all the parts of the plant and how these structures are adapted to their function. Although some angiosperms are windpollinated, most have evolved with a vector mechanism for pollination. 1. Get an answer for 'How gymnosperm are adapted for survival in a land environment with respect to their characteristic "vascular tissue"?' Flowering plants, or angiosperms, possess the most recent adaptations to life on land: the flower, double fertilization and the endosperm, and fruit: Flowers might not seem like an obvious adaptation to living on land, but flowers rely on pollinators (such as insects, birds, bats, and other animals) to move pollen (and therefore sperm) to eggs. Other adaptions that help are shape, gymnosperms and angiosperms. 2. Wide dispersal of The following points highlight the top eighteen characteristic features of Angiosperms. They have a vascular system (used for the transportation of water and nutrients) that includes roots, xylem, and phloem. 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