PPT-Angiosperms—Flowering Plants

Flowers and Fruits Flowers and Fruits Angiosperms develop unique reproductive organs known as flowers Flowers and Fruits Flowers are an evolutionary advantage because they attract animals. . Spring . 2014. Outline. Origin of the angiosperms . Characters of angiosperms. Brief history of angiosperm classification. Major groups of angiosperms. ANITA grade. Origin of the Angiosperms. Conifers. Plantae. Phylum: . Pteropsida. Class:. Filicinae. , . Gymnospermae. , . Angiospermae. Pteropsida. . A large group of vascular plants characterized by having . parenchymatous. leaf gaps in the stele and by having leaves which are thought to have originated in the distant past as branched stem systems. . Arthur and Kelvin. -> Flowering involves a change in gene expression in the shoot apex.. -> The switch to flowering is a response to the length of light and dark periods in many plants.. -> Most flowering plants use mutualistic relationship with pollinators in sexual reproduction. Discuss floriculture and landscape plants. Taxonomy. The science of classifying and identifying plants. Scientific names are used because the same common name is used for different plants in different areas of the world.. Angiosperms: Dicotyledons This section contains anatomical de- scriptions of stem and twig xylem, as well as the bark and pith regions of 244 dicotyledonous species belonging to 61 families. TWIG A 6.L.5B.3 . Adaptations For Defense. Structures for defense protect plants from threats that could potentially kill the . plant.. Examples . of . natural defenses . that plants have developed over time may be: . From Last Day:. Closest Living Relatives of Land Plants - . Charophytes. Chara. . Coelochaete. Some . Charophytes. Typical . Charophyte. habitat. ?. Adaptations? - . sporopollenin. (polymer). Pollen grains – land plants. Scientists sort plants into different groups, just like they do animals.. Nonvascular plants do not have true roots, stems, or leaves because they don’t have veins.. Because they absorb water and food from their surroundings, they cannot grow very tall.. Angiosperms: Flowering plants. Characteristics of Angiosperms (Division Anthophyta. ). Presence of complete or incomplete flowers. Monocotyledonous or Dicotyledonous development. Xylem and Phloem well defined within monocot or dicot arrangements.. Image 02: Harmonized floweringof Strobilanthesin Horton Plains in 2013. (A) S. pulcherrima,(B) S. calycina and(C) S. viscosa. Longreproductive period is necessary to accumulate enough resources to pr B.Sc- II – Sem – III. Unit - I. Dr. M. Nafees Iqbal. Head, Department of Botany. M.S.P Arts, Science & K.P.T Commerce College Manora. Gymnosperm . (Gk. . Gymnos. = naked; . sperma. = seed). The Importance of Seeds. Q: What adaptations allow seed plants to reproduce without open water?. A: Adaptations include 1)a reproductive process that takes place in cones or flowers, 2)the transfer of sperm by pollination, and 3)the protection of embryos in seeds. Photoperiodism. in . Plants: Flowering. Photoperiodism. : . regulation of seasonal activity by day length (photoperiod). Garner & . Allard’s (1920) hybrid tobacco plants:. Wouldn’t flower outdoors even if 2-3m in height (. Science. A pen and paper.. Laptop or . digital device.. You will need. Lesson 20: challenge answer. Learning intention. To know and understand the characteristics of flowering plants.. Key idea in science: patterns, order and organisation.