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Science :)

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Chara Serra Ü

on 27 February 2013

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Transcript of Science :)

Milena Flament Proponent of the
"Flipped" Classroom *Subphylum Spermopsida ^Gymnosperm and Angiosperm. r + Angiosperms :) This is some of their characteristics. GYMNOSPERMS. ANGIOSPERMS. QUIZ >:D 1. What do you call the seed-producing plants ? 2-3. give the two forms of cones. 4. What do you call the subclass of Gymnosperm that usually don't have branches. 11-12. Which of the two do you think can help our community ?? WHY ? <3 Thank Ü For .. LISTENING * :] Trees Have 2 Kinds .. 1. Gymnosperms : >>>Cones have 2 forms .. is a vascular plant that produces seeds that are not protected by fruit but are hidden in a woody cone. They do not have flowers. * Most Trees Have the Reproductive Structure called Strobilus or cones. A. Staminate cones : Bear POLLEN. B. Ovate Cones : Bear Ovules and later seed. Majority of Gymnosperms belong to the group of Conifers which includes the : Pines RedWoods Cypresses Gymnosperms are divided into two subclasses the CYCADOPHYTE and CONIFEROPHYTE. 1. Cycadophytae --> Are smaller plants which usually have unbranched stems and pinnate leaves. 2. Coniferophytae --> Are Larger plants with many branches and simple leaves. These are plants that bear flowers. They grow in the tropics and almost any place in land. There are two subclasses of angiosperms .. Monocotyledons
--> Have only one cotyledon or seed. their leaves are parallel and slender. Their roots are fibrous. one example of monocots is onion. Dicotyledons
--> have two cotyledons or seeds. Their leaves have net like structure. Their stem trunk grows big with a cambium and exhibits secondary thickening. One example is Tomato. -Conifer a form of Gymnosperms are often used as christmas trees. -They produce seed. Angiosperm are sources of : Food Clothing Shelter Medicine Transportation Perfume Construction materials And many more .. 5. What do you call the subclass of Gymnosperm that have simple leaves. 6-7. Differentiate Monocotyledon from Dicotyledon. 7-10. Give me 4 importance of Angiosperms 4 Major division of Gymnosperms. a. Division pinophyta --> They are cone-bearing seed plants with vascular tissue, all conifers are woody plants, the great majority being trees with just a few being shrubs. b. Division Cydophyta
--> are seed plants typically characterized by a stout and woody trunk with a crown of large, hard and stiff, evergreen leaves. They usually have pinnate leaves. C.Division Ginkophyta
--> Ginkgo is a genus of highly unusual non-flowering plants. D. Division Gnetophyta
--> The plant division Gnetophyta or gnetophytes consists of three genera of woody plants grouped in the gymnosperms. This are the three: genera Gnetum, Welwitschia, and Ephedra. Division and 2 classes of Angiosperm 1. Division Magnoliophyta
--> comprising flowering plants that produce seeds enclosed in an ovary. 2. Class Magnoliopsida
--> comprising seed plants that produce an embryo with paired cotyledons and net-veined leaves. 3. Class Liliopsida
--> Liliopsida is a botanical name for the class containing the Lily Family.
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