found in a geo- graphic area at a particular time of year. GYMNOSPERMS 1)The seeds of gymnosperms‚ the oldest seed plants‚ are exposed to the outside and are not enclosed in a protective chamber like the angiosperms. A)Conifers are the largest group of gymnosperms . They include pines‚ spruces‚ firs‚ junipers‚ and other evergreen plants that usually retain their leaves or needles all year. Many conifers produce their seeds within a hard‚ scaly structure‚ called a cone. B)Female cones‚ which are
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Tuba-tuba orJatropha.Jatropha is a drought resistant perennial shrub or small tree that produces seeds up to 35 years but can live up to 50 years. Jatropha grows fast with little or no maintenance and reaches the average height of about 3 meters but it can grow up to 8 meters. Tuba-tuba is one of the most promising sources of bio-fuel today. About 30% of the Tuba-tuba nut is composed of oil. 3 kilos of Jatropha seeds can produce about 1 liter of crude Jatropha oil that can then be processed into biodiesel fuel
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Lauren Kelly Individual Student Presentation 28 July 2013 Toxic Plants 10. Would you believe that there’s a tree so poisonous that you don’t actually have to touch it to be harmed? It’s called the manchineel tree (found throughout the Florida Everglades‚ Central America and the Caribbean. Inhaling sawdust or smoke tree may result in a variety of uncomfortable side effects‚ including coughing‚ laryngitis and bronchitis. Some reports suggest that simply standing beneath the tree during a rainstorm
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releases sperm into the ovary. An available egg receives the sperm‚ and the egg is fertilized with a meat-bearing seed. The pollen/sperm can belong to the original plant or may come from another sunflower. Self-pollination is a mechanism that the sunflower uses to stay alive. On the occasion where the stigma receives no pollen‚ the stigma will twist and wrap itself around its own pollen. Seeds created by self-pollination will only produce flowers that look like the original plant‚ so no hybridization
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STUDY GUIDE INTEGRATED SCIENCE 10 PLANT UNIT DO YOU/CAN YOU…. 1. Understand that both plants and animals (eukaryotes) undergo a similar process for cellular division/reproduction? Both plant and animal cells undergo mitosis and meiosis. In plants‚ there is an alternation of generations; the gametophyte generation‚ where haploid gametes (pollen and ovule; sperm and egg) are produced via mitosis. Then the sporophyte generation combines these two into spores via meiosis‚ resulting in a diploid
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The most difficult form of propagation is grafting. A lot of people probably think this is dumb or boring‚ but I think it is neat. Most people think the only way to grow plants is by seed‚ but you can also use leaves‚ and stems. Sean Russell says” Plants naturally use several different methods to multiply‚ from seeds to spores to shoots. Gardeners looking to speed the process along can propagate new plants from cuttings. Cuttings are a part of a plant’s roots‚ branches or leaves that‚ when cut and
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experimental samples of the mixture labeled A‚ B‚ and C. the oil extract from the seed of the nipa palm treeis mixed with diesel using the following ratio of 70:30‚ 60:40‚ and 50:50. Each experimental sample contained a mixture 100ml of an extract of nipa fructicosa seed extract and diesel oil and flame tested. The substance produced from the mixture of nipa palm seed oil and diesel is a form of bio-diesel. Nypa Frutican Seed Components Zinc Corrosion Inhibition: Study showed Nypa fruticans leaves extract
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Hypothesis: Changing the elements of the environment within the bottle ecosystem will affect how the plants grow. If worms/bugs are added to the bottle they will live there. Materials: * 2 Liter pop bottle * Scissors * Soil * Seeds (grass and bean) * Boiled still water * Rocks * Pencil * Fork * Tape & Marker Additional Materials: * UV lamp * Lemon Juice * Worms or Snails * Dirt from outside * Miracle Grow * Tap water Procedure:
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to understand Mendel’s concept of a Dihybrid by performing similar crosses and calculated the phenotypes that are displayed. This project was conducted over many weeks by planting F1 seed and waiting for them to grow then cross-pollinating the F1 plants to produce the F2 seeds. Next students were to plant the F2 seeds and record the phenotypes. After all the data was collected we ran a statistical test called a Chi Squared to see if the hypothesis put foreword was correct. After running the Chi Squared
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Preparation of Keiki Paste Materials: Vaseline (Petroleum Jelly) | 44.0g X 3 | Cetyl/ stearyl alcohol | 9.0g X 3 | Paraffin Oil (Liquid Petroleum) | 5.0g X 3 | Tween 40 | 2.0g X 3 | Benzyl Amino Purine (BAP or Benzyl adenine) | 1.2g | Water | 40.0g X 3 | 500ml Beaker | 3 | Metal stirrer | 3 | 55°C water bath | 1 | Weighing boats | 10 | 95% Ethanol | | Weighing Balance | 1 | | | | | | | Method 1. 44.0g of Vaseline and 9.0g of Stearyl alcohol was melted
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