&! Although the taxonomy of the angiosperms is still incompletely known, the latest classification system incorporates a large body of comparative data derived from studies of DNA sequences. chloroplast and nucleus, a different picture emerged (Fig. Angiosperms and gymnosperms both utilize seeds as the primary means of reproduction, and both use pollen to facilitate fertilization. Now, angiosperms are more widely distributed and populous, and can be considered the dominant plant life on the planet. This success is due, in part, to their adaptability to specialized ecological niches. evolution of pollen. These plants have adapted to inhabit nearly every corner of land on the Earth. Additionally, all but the most ancient angiosperms contain conducting tissues known as vessels, while gymnosperms (with the exception of Gnetum) do not. A.pollen and seeds B.vascular system Extension: (30-45 minutes) Students will make a collage of plants found in a particular biome from magazines or using pictures from the internet. The plant has roots that anchor it to the ground and seek out water and minerals. (credit: Myriam Feldman) From their humble and still obscure beginning during the early Jurassic period, the angiosperms—or flowering plants—have evolved to dominate most terrestrial ecosystems (Figure 1). Flowers are adaptations to attract pollinators " ’" š" ›" Ù" Ú" û" øîãîØîØîãîøîãîÈîØîãîÈîØî½³©³ž³îãîãîØîãî“î“îÈîˆîãîÈîˆî hô0Ä CJ H*OJ QJ hô0Ä >*CJ OJ QJ hÔ]# 6CJ OJ QJ háQ4 CJ OJ QJ hÔ]# CJ OJ QJ hÔ]# 5CJ OJ QJ j hô0Ä 0J= CJ OJ QJ Uhô0Ä 6CJ OJ QJ hô0Ä 5CJ OJ QJ hô0Ä CJ OJ QJ hô0Ä OJ QJ 5; 2 u v Í Î ! Which of the following adaptations was a key to allowing conifers to be successful in diverse terrestrial habitats? They inhabit every kind of land and … Unlike such nonvascular plants as the bryophytes, in which all cells in the plant body participate in every function necessary to support, nourish, and extend the plant body (e.g., nutrition, photosynthesis, and cell division), angiosperms have evolved specialized cells and tissues that carry out these functions and have further evolved specialized vascular tissues (xylem and phloem) that translocate the water and nutrients to all areas of the plant body. Reliance on pollinators is much less random than reliance of … As these ongoing studies have expanded in scope and scale, they have increasingly supported the idea that angiosperms diverged early in the history of seed plants, not more recently, as most botanists had assumed. 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