Subsequently‚ _Daphnia_ was treated with different type of hormone and the effect on Daphnia heart rate was observed. It was investigated which substances act as stimulants and which substances act as depressant. Daphnia was treated with aged water‚ caffeine‚ ethyl alcohol‚ nicotine‚ and epinephrine‚ and their effect on heart rate of Daphnia was observed. The results are posted on table 1: Table 1: Average heart rate for Daphnia at pre-stimulus and post stimulus for different hormones: # OF TRY AGED WATER
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Name Class For Edexcel GCSE Mathematics Paper 1B (Non-Calculator) Foundation Tier Time : 1 hour 45 minutes Total Marks You must have: Ruler‚ protractor‚ compasses‚ pen‚ pencil‚ eraser. Instructions and Information • • • • • • Write your name in the box at the top of the page. Answer all the questions in the spaces provided. The total mark for this paper is 100. The marks for each question are shown in brackets. Calculators must not be used. Questions labelled with
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Biodegradable Waste Bio-waste is defined as biodegradable garden and park waste‚ food and kitchen waste from households‚ restaurants‚ caterers and retail premises‚ and comparable waste from food processing plants. It does not include forestry or agricultural residues‚ manure‚ sewage sludge‚ or other biodegradable waste such as natural textiles‚ paper or processed wood. It also excludes those by-products of food production that never become waste. Currently the main environmental threat from
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Lu Feng BIO 182 Hillary Emick Plant Adaptation Pinus halepensis‚ commonly known as the Aleppo Pine‚ is a pine native to the Mediterranean region. In dessert‚ water is limited for plants to grow up. Pinus halepensis has plans for water management. The leaves are very slender‚ 6–12 cm (2.4–4.7 in) long‚ distinctly yellowish green and produced in pairs (rarely a few in threes).1 The needle-shaped leaves exposed area minimizes the amount of moisture lost to breezes and the sunlight. The needle-shaped
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I BIOS (BASIC INPUT OUTPUT SYSTEM) BIOS is an acronym for Basic Input Output System. It is the program that stores configuration details about your computer hardware and enables your computer to boot up. Every time your computer is switched on the BIOS loads configuration data into main memory‚ performs a routine diagnostic test on your hardware‚ then loads the operating system. Every computer has BIOS. There are many types but the most common type of BIOS ’s come from: AMI‚ Award and Phoenix
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Russia had enough chemical weapons to wipeout most animal and plant life on earth. Biological weapons were deployed in various ways to gain strategic or tactical advantage over an advisory. The United States developed an anti-crop capability that used bio-herbicides or myco-herbicides to destroy enemy agriculture. Fisheries and water-based vegetation was also targeted. Wheat blast and rice blast were weaoponized in aerial tanks and cluster bombs to deliver to enemy water sheds. Even though herbicides
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GCSE ENGLISH LIT POETRY CLASHES AND COLLISIONS The Exam Structure You will answer two questions on poetry. The exam will last one hour and forty-five minutes and is worth 25% of your total GCSE. The exam is divided into two sections: Section A: Unseen Poetry • You will be presented with a poem you have not studied. • You read through the poem and answer the questions set. This section is worth 20 MARKS Section B: Anthology Poems • You will answer 1 question in 2 parts. • Each part is worth 15
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The Effects of Temperature‚ Acetylcholine‚ and Adrenaline on the Heart Rate of Daphnia magna Hieu Duong 6 April 2011 Introduction The heart is a muscular organ that constantly pumps blood throughout the human body. The continuous flow of blood creates a system for vital organs within the body to gain oxygen and nutrients. The timely delivery of oxygen to the body’s organs is very crucial. Brain cells‚ for example‚ will die within minutes if the flow of oxygen is obstructed. For the
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Wilfred Owen’s poem "Disabled" is about a soldier who came home from WWI missing limbs‚ and how this disability changed his life. This poem was written when Owen was in Craiglockhart War Hospital being treated for shell shock. It is very likely that he saw numerous soldiers like the one he describes in this poem while he was at the hospital. It was common that soldiers would return home missing limbs or severely wounded‚ there wasn’t a whole lot that could be done for soldiers while they were on
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Identify and explain two ways in which the extended families are IMPORTANT in the contemporary UK (17) An extended family contains kin beyond the nuclear family. It includes the vertical extension‚ a 3rd or 4th generation such as grandparents or great grandparents‚ or a horizontal extension such as cousins or aunts/uncles. Willmott and Young believed from historical data that the extended family was the most dominant before being replaced by the nuclear family. Financial stability is important
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