Florencia Rodriguez October 20‚ 2010 IB Biology SLII The effect of three different pH levels (4‚ 7‚ 10) on the rate of germination of spanish beans Research Question: What is the effect of three different pH levels (4‚ 7‚ 10) on the rate of germination of spanish beans? Independent Variable: The different pH levels in the water would be the independent variable in this lab. Three different pH levels were tested‚ 4‚ 7 and 10‚ both 4 and 10 were chosen because they are 3 pH levels away
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INTRODUCTION TO ASCLEPIAS CALIFORNICA The terrestrial plant‚ Asclepias californica‚ is the primary food source for Monarch butterflies. It can only germinate and produce seeds if provided with the proper environmental influence. The California milkweed’s population is spread out in the southern and coastal areas of California where there are flat lands and grassy slopes. It can also grow up to three feet tall and have clumps consisting of multiple stems that are a couple of feet in width. Unlike
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also added the same amount of soil to each small pot as well as giving each pot containing seeds the exact amount of water each day. Each of the pots was kept in three separate containers which were all identical only the colour of the handles of each container being different. In two of the containers‚ a cell phone was placed‚ the same
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2.3.3 Effects of heavy metals on plants Plants are sensitive for both‚ deficient and excess availability of some of the heavy metal ions. In which some of them at low concentration are compulsory micronutrients‚ while the same at higher concentrations such as Cd‚ Hg‚ As are intensely toxic to the metabolic activities of the plants (Reeves and Baker‚ 2000; Fernandes and Henriques‚ 1991). Agricultural soil is contaminated by heavy metals‚ has become a critical environmental concern due to their potential
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Introduction to Biology Lab- Pre-lab for Ecology Lab #8 A.) Hierro‚ Jose L.‚ and Ragan M. Callaway. "Allelopathy and Exotic Plant Invasion." Plant and Soil 256.1 (2003): 29-39. Springer.com. Kluwer Academic Publishers‚ 13 May 2003. Web. 7 Mar. 2013. <http://download.springer.com/static/pdf/801/art%253A10.1023%252FA%253A1026208327014.pdf?auth66=1363980296_005e124552dacf48bf5fb9abb2861861&ext=.pdf>. B.) This article documented an experiment done on an invasive forb found in the
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withstand long periods of drought. It has a long taproot and can withstand high temperatures during the summer. Ber is a multipurpose tree (see Appendix 1). The fruit is the most well-known and used product from the tree‚ however it is also a source of seeds‚ timber‚ fodder‚ medicines and potential industrial components. Ber trees can compensate local farmers after subsistence crops have been harvested‚ giving a potential economic return in local markets when food is scarce. The fruits harvested 3-4
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concentration of Miracle Gro was ideal for the germination of seeds. I hypothesized that the 1.25% concentration of Miracle Gro would allow the plant to grow the fastest‚ unfortunately‚ my data does not support my hypothesis. According to the information we collected‚ the amount of concentration with the fastest speed and greatest height of growth was the 0% with plain tap water (control group). Two days after “planting‚” my group measured the seed with the greatest rate of growth: 0% exhibited 2
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distinguishing features of gymnosperms and angiosperms. 2. Understand the evolutionary significance of pollen and seeds. 3. Understand the function of a cone‚ a flower‚ and a seed. 4. Relate the life cycle of angiosperms to the other phyla of the plant kingdom. ______________________________________________________________________________ INTRODUCTION TO GYMNOSPERMS Gymnosperms are plants with exposed seeds borne on scale-like structures called cones (strobili). Like ferns‚ gymnosperms have a well-developed
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[pic] The Stages of a Flower from Seed to Bloom (The process by which flowers changed physically) It usually takes at least seven weeks for a flower propagated from a seed to bloom. The growth and development of flowers occurs over several weeks from the germination of seeds planted in the ground to the time in which flowers bloom. The entire process happens in about five stages for most flowers
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grow more rapidly than a plant given the recommended amount of water. To prove my hypothesis I will use the following materials: • Bean and mielie seeds • Cotton wool • Tap water My preparation includes: • Putting one cotton wool ring on six separate saucers • Placing one bean and one mielie seed on each ring • Covering the seeds with another ring • Label three as A and three as B Group A got 10ml water as a start and from there on 4ml three times a day. Group B got 50ml water
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