2011 Plants and Nitrogen Lab Report Introduction: Plants need ammonia‚ a combination of nitrogen and hydrogen‚ or nitrate‚ a form of inorganic nitrogen to grow. Most nitrogen is found in the atmosphere. However‚ plants and animals cannot directly absorb the nitrogen found in the atmosphere. Instead nitrogen gas is captured from the air by species of bacteria that lie in the water‚ soil‚ or grow on the roots of some plants. These bacteria convert the nitrogen into a form usable by plants. The
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The evolution of plants has resulted in increasing levels of complexity‚ from the earliest algal mats‚ through bryophytes‚ lycopods‚ ferns to the complex gymnosperms and angiosperms of today. While the groups which appeared earlier continue to thrive‚ especially in the environments in which they evolved‚ each new grade of organisation has eventually become more "successful" than its predecessors by most measures. Probably an algal scum formed on land 1‚200 million years ago. In the Ordovician period
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SICK PLANTS Hypothesis: From my research‚ I think the plant in the solution containing all nutrients will have the fastest / most successful growth‚ and the control group / water solution will have the least growth as it doesn’t have any of its necessary nutrients. Variables: The independent variable will be the solution the plants are put in to begin with. All other conditions will be kept the same‚ such as temperature‚ sunlight‚ length of shoot‚ time space left. I will have a control group
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Biology Assignment Transpiration rates between Exotic vs. Native plants In this investigation we will be looking at transpiration. The topic we will be focusing on is transpiration rates between native plants as well as exotic plants. We will be experimenting with 2 native plants as well as 2 exotic plants. The reason we are experimenting on this topic is because of Australia’s dry weather‚ we are wanting to find out which plants will be able to hold more water during Australia’s peaking tempretures
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Investigating the Effects of Plant growth within Abstract This experiment was conducted to determine whether or not those plants can grow in low fertilized‚ less sun light and the control group. Each group had there own task of making sure that the plants were always water‚ each plant had the same amount of light on them. When the plants started to evolve each individual plant was measured of the height. Most of the plants grew faster than others but over the period the plants that grew faster started
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to show the effects that different colors of light have on plant growth. We separated our plants into different boxes and then covered the openings with colored cellophane. We conducted this experiment for approximately two weeks. Out of the colors blue‚ green‚ red‚ and yellow‚ the plant behind the blue cellophane grew the most. Research Problem What effects does different color light have on plant growth? Hypothesis The plants will grow taller under the red and blue light opposed to the
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Mutualistic relationship of young desert plants and nurse plants. By: Anthony J. Johnston University of Arizona Abstract- The project being presented is on the association of desert plant life with nurse plants. It is said that desert plant life such as C. Gigantea‚ Ferocactus Wislizeni‚ and Ambrosia Deltoidea‚ associate themselves with other large nurse plants for protection‚ and other resources. Results showed that there was no random association of this hypothesis; therefore the null hypothesis
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1. Remove any flowers that may remain on the flower stalk. Use clean‚ healthy‚ vigorous flower stalks with buds in their nodes. Stalks on which only a few flowers have bloomed are best. Avoid old flower stalks. 2. Wash the flower stalk under running tap water for 5 minutes. 3. Prepare a 10% chlorine bleach solution and add 2-3 drops of Tween 20 (Product No. P720) to this solution. 4. Section the flower stalk into smaller pieces by using a clean razor blade or scalpel and cutting between the
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OF PLANTS Raluca Elena Hedes STRUCTURE: PART 1: Clarifying THEORETICAL CONCEPTS and TERMINOLOGY ¨ PART 2: Aspects of PRACTICAL APLICABILITY ¨ PART 3: SOURCES ¨ PART 4: Q&A ¨ The term allelopathy… ¨ ¨ • • 1937 – introduced by Prof. Hans Molisch Derived from the Greek words: Allelon = of each other Pathos = to suffer Definition ¨ 1996 - The International Allelopathy Society: “Any process involving secondary metabolites produced by plants‚ micro-organisms
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woodland should have a diversity index of 0.7. An area that is not very diverse‚ like a cornfield‚ might have a diversity index of 0.02 or less. In this investigation‚ each bag of candy represents a different habitat. Each color represents a different plant in the habitat. Materials: Notebook paper 1 small bag of fruit candies 1 small bag of chocolate candies 2 dishes or plastic containers Procedures: 1. Pour each bag of candy into a separate container or dish so you can see all the colors
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