Bioassay of Radish Seeds Bioassay is a type of scientific experiment used in the development of new drugs and monitoring pollutants. It estimates the potency of a substance‚ by testing its effect on living matter. In other words‚ it determines how much of the substance is needed to poison an individual‚ without testing it on any humans or animals. From here the TC50 of the substance can be adjusted for dealing with humans and animals over plants. In this lab we attempted to find the potency of
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1. 1a. Geographic range‚ population density and distribution‚ growth rate‚ and age structure. 1b. Gray squirrels have a very geographic range. 2a. Births‚ deaths‚ immigration‚ and emigration. 2b. The dandelion population will probably grow. Eventually‚ dandelions might take over the lawn. 3a. A population grows exponentially when it has all of the resources it needs and disease and predation do not occur. 3b. Exponential growth shows a “J shaped” curve because with each generation‚ the number
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1. Egyptians used salt to persevere their dead. In the Middle Ages people used salt to protect their crops from getting ergot. The Jews and Muslims use salt to protect newborns from evil. These are three different cultural beliefs that reflect the importance of salt as a means to protect life. 2. The Chinese salt history began under the rule of Huangdi. Huangdi‚ also called the Yellow Emperor‚ credited with making the earth civil. He taught people many skills‚ and introduced systems of government
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Bath Salts or Designer Cathinones The principal active ingredient in bath salts MDPV (methylenedioxypryrovalerone) is a highly potent synthetic cathinone derivative. The Navy takes a zero tolerance stance when it comes to the use of synthetic drugs. According to SECNAV Instruction 5300.28D‚ the use of any controlled substances and designer drugs such as "bath salts" is prohibited and could result in discharge from the Navy. From the Seattle Weekly: “According to the feds‚ the drug first
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2. SEED SAMPLING RL. AGRA w.4.L Seed sampling is aimed at obtaining a sample of the required size and consisting of the same components as the whole lot of seeds. The quantity of seed tested in the laboratory is small‚ compared with the size of the seed lot which it is intended to represent. No matter how accurately the laboratory work is done‚ the results can only show the quality of the sample submitted for analysis. Consequently. every effort must be made to ensure that the sample sent to
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2012-2013 Winter Break Homework Packet Prince George’s County Public Schools Reading/English Language Arts Grade 9 1 GRADE 9 WINTER BREAK READING HOMEWORK PACKET In Preparation for the Maryland High School Assessment‚ PSAT‚ and SAT DIRECTIONS: The enclosed activities are to be completed by your child during the Winter Break and he/she is encouraged to return it to his/her Reading/English Language Arts teacher upon return to school. Parents are encouraged to assist in the following ways:
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Biology Investigation Aim: to investigate the effects of light and gravity on the growth of sunflower seeds. Background Info: Tropism is directional movement in response to a directional stimulus eg light or gravity. Plants are not able to relocate if they happen to start growing where conditions are nor perfect but they can alter their growth towards more favorable conditions. Plants respond to light (phototropism) where the stems grow towards the light and the roots grow away from
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Poppy Seed in daily life (Kas Kas) Kas-kas or it’s scientific name Semen Papaveris also known as Opium Poppy in English‚ is an erect annual herb‚ growing up to a meter and a half in height with large hairless‚ almost grayish-green‚ serrated leaves. Poppy seed‚ tiny dried seed of the opium poppy‚ used as food‚ food flavouring‚ and the source of poppy-seed oil. Poppy seeds have no narcotic properties‚ because the fluid contained in the bud that becomes opium is present only before the seeds are fully
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The Seeds of Destruction The main objective of my project is to explore in depth‚ how the bio-piracy and biotech patent system affect the life of indigenous people of Third World countries‚ in relation to their rights to natural resources and knowledge that they have developed in common over centuries. I would focus on few important issues‚ including the enclosure of natural commons‚ such as seeds and plants on one hand‚ and the exploitation of the worker‚ his labor and knowledge about them‚ on
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Perceived restraints on the seed treatment market: * In any event‚ the benefits of seed treatment are most likely to be realized under certain circumstances and are subjective like: * Crops planted in mid-April to early-May‚ especially no-till or minimum till with abundant crop residue. * Narrow spectrum seed treatments are effective against specific genera of fungi that cause damping-off‚ such as Pythium‚ above. * Fields with a history of post-planting problems (minor soil crusting
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