INSECTIVOROUS PLANTS An insectivorous plant‚ also called a carnivorous plant‚ captures prey items‚ such as insects‚ spiders‚ crustaceans‚ mites‚ and protozoans‚ as a nitrogen source. Many insectivorous species live in freshwater bogs‚ where nitrogen is not present in available form‚ because the pH of the water is extremely acid. The forms of entrapment by these types of plants are modified leaves. Five basic trapping mechanisms are found in carnivorous plants. 1. Pitfall traps (pitcher plants) trap prey
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produces solid or semisolid foods with significantly lower water content. The concentration of liquid foods has three different methods; evaporation‚ membrane concentration‚ and freeze concentration. Evaporation usages gas liquid phase separation. It has the lowest capital cost and the maximum concentration for freeze concentration is more than 50 Brix. Membrane concentration can be used for separating components of foods on a molecular basis‚ where the foods are in solution and where a solution is separated
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changes in temperature such as cold/hot would have on the diffusion rate? Answer: The rate of diffusion of molecules depends on how soluble they are. The rate of diffusion depends on the size of the molecule in general‚ small molecules would pass through a membrane faster than larger molecules. As temperatures increase‚ molecular movement increases. As the movement increases‚ so will the diffusion rate as the molecules spread faster and faster. The opposite would be true of colder temperatures. 3.
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Green plants absorb light energy using chlorophyll in their leaves. They use it to react carbon dioxide with water to make a sugar called glucose. The glucose is used in respiration‚ or converted into starch and stored. Oxygen is produced as a by-product. This process is called photosynthesis. Temperature‚ carbon dioxide concentration and light intensity are factors that can limit the rate of photosynthesis. Plants also need mineral ions‚ including nitrate and magnesium‚ for healthy growth. They
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Effect of Temperature on Cricket Respiration Crickets are ectotherms that rely on their environment as a source of heat for their metabolism. Warmer temperatures allow crickets to respire at a greater rate. Respiration rate (ppm/sec/g) 1.2 1 0.8 0.6 0.4 0.2 0 0 5 10 15 20 25 30 35 40 45 Temperature (°C) Figure 1: Respiration rate (ppm/sec/g) of crickets at 6 different temperatures (°C). Values are means of 6 respiration rate measurements. Error bars represent
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prepared for the experiment‚ one at room temperature and the other two at 15°C and at 5°C. The room temperature water bath was prepared by filling a basin with tap water about ¾ full so that when the subject’s face is submerged‚ the water will not spill. A thermometer was used in order to obtain the temperature of the water. The temperature obtained was at 26°C. The water baths having temperatures of 15°C and 5°C were also prepared the same way as the room temperature water bath only with the addition of
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Journal of Minerals & Materials Characterization & Engineering‚ Vol. 10‚ No.4‚ pp.367-385‚ 2011 jmmce.org Printed in the USA. All rights reserved Hot Corrosion & Erosion Problems in Coal Based Power Plants in India and Possible Solutions – A Review Vikas Chawlaa*‚ Amita Chawlab‚ D. Puric‚ S. Prakashc ‚ Prema G. Gurbuxanid and Buta Singh Sidhue Mechanical Engineering Department‚ F.C.E.T. Ferozepur-152002‚ India Chemistry Department‚ Govt. Brijindra College‚Faridkot-151203‚India c Metallurgical
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400 mm‚ but in such cases it depends largely on ground water levels. Neem can grow in many different types of soil‚ but it thrives best on well drained deep and sandy soils. It is a typical tropical to subtropical tree and exists at annual mean temperatures between 21–32 °C (70–90 °F). MEDICINAL VALUES OF NEEM: Products made from neem trees have been used in India for over two millennia for their medicinal properties.[4] Neem products are believed by Ayurvedic practitioners to be anthelmintic
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on The Negative Effects of Facebook on teenagers in Dhaka The Negative Effects of Facebook On Teenagers in Dhaka Submitted to: Ms. Dilruba Jahan Assistant Professor‚ Language Institute Submitted by: Kayafa Hossain ID-111 121 559 Sec-NJ Date of submission: 5.1.2013 5th January‚ 2013 Dilruba Jahan Asst.Professor Language Institute Subject: submission of Extended Essay Dear Madam I am pleased to submit you the report on “ The Negative Effects of Facebook on Teenagers
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Plant Transport Plants are mostly made up of water. Lettuce is about 94% water and a potato is about 77% water. Plants need water for three main purposes: ------photosynthesis‚ -support -transport of chemicals Water is a raw material for photosynthesis. If water is in short supply‚ the rate of photosynthesis will be limited. Plants need water for support‚ otherwise they wilt. Water is needed to transport many chemicals within plants. Chemicals‚ such as mineral salts‚ dissolve in water and
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