seed plants clara arango 4th
TRANSCRIPT
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Seed Plants
Seed Plants reproduce with out water.
A seed is an embryo of a plants that is encased in a protective covering and surrounded by a food supply.
Pollen grain is a male gametophyte in seed plants.
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Works Cited
CHAENACTIS STEVIOIDES. Life Story Publications. 01 Apr. 2000. library. Web. 11 Mar. 2010. Photo page #1
Levine, Joe and miller, ken biology new jersey: prentice hall, 2002
FIR - DOUGLAS CONES(1 Of 2). LifeStory Publications. 01 Jan. 2002. eLibrary. Web. 11 Mar. 2010.
MARK RALSTON. The General Grant Giant Sequoia tree which is the third largest....
Getty Images. 14 Oct. 2009. eLibrary. Web. 11 Mar. 2010
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Cone Bearers
Pine cones contain seeds.
Pine, fir and redwood trees are call Conifers.
Redwood trees can grow 300 feet tall and they can be 2000 years old.
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Ecology of Conifers
Ecology of conifers today, conifers thrive in wide varity of habitats, on mountains, in saiy soil and in cool, moist areas such as the temperate rain forest of the pacific northwest.
Scientists have hypothesized that more that 250 million years ago, when conifers evolved, climate conditions were dry and cool.