BI309 Lab-2 Name of student: Anisa Dreunibakarua ID #: S11033198 Title: Effect of Temperature and Stimuli on Simple Muscle Twitch. Introduction: Skeletal muscle is a type of striated muscle that is attached to skeleton to facilitate movement by applying force to bones and joints through contraction. Skeletal muscle generally contract voluntarily when stimulated by the nerve‚ although they can also contract involuntarily at times. Muscle action is controlled by the Nervous System
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Heat and Energy Transfer Lab Materials needed: Part 1: bowls (not included in the lab kit; use cooking pots or plastic containers- something large enough to fit your hand) ice (not included in the lab kit) thermometers Part 2 test tubes – use three similar glasses or cups water various household materials for insulation stove or microwave to heat up water Part 1: Heat transfer and human sensation 1. Pour warm water in the bowl on the left‚ cold water in the bowl on the right‚
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Solubility Curve of Sodium Nitrate Data collection |Temperature (°C) | |Mass of solute in 5ml (g) |Mass of solute in 100ml (g) | |1st set of data |2nd set of data |Average | | | |23.5 |24.0 |23.8 |4.5
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The objective: In this experiment‚ I decided to find out how temperature would affect endothermic reactions compared to exothermic reactions. An endothermic reaction absorbs energy in the form of heat. This reaction feels cold because it is taking heat away from its surroundings. It also releases gases. An exothermic reaction is a reaction that releases energy as heat. Since the energy is released‚ the exothermic reactions feel hot. Methods/Materials I did three experiments. I mixed lemon juice
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India GDP Composition Sector Wise The Gross Domestic Product or GDP is the indicator of the performance of an economy. According to the estimates of 2008‚ India’s GDP is $1.209 trillion and this is slated to make improvement in the coming times. It is estimated that India’s GDP will grow by 6.5% in the year 2009. In 2008 the country’s GDP was 9%; the slowdown that has been witnessed this year in the estimates is largely due to the slowdown witnessed by the agriculture and the industrial sectors.
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The alalysis of poem «March» by Edward Thomas The poem ’March’‚ as the most of Thomas’s poems describes the state of nature. The mood of March days is briefly described through subtle details such as behavior of birds and plants and weather changes (from snow and rain to warmth and sunshine). In terms of structure and verse form‚ the poem isn’t divided into separate stanzas‚ but it can be logically parceled out in three parts. The first part (from the beginning to the line “As if the mighty
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List and describe your level of interest and participation in hobbies‚ activities‚ and groups not associated with school. List any awards or honors you received in the past two years Some people choose their hobbies based on fashion of their society or groups which they are associated with‚ or because hobbies are beneficial to them. For me I choose my hobbies and activities depending on my interest and passion to this case My most favourite hobby is to listen to the music. In the majority I can
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1. A pronoun is a substitute for a noun. a. Many pronouns have antecedents – nouns or pronouns to which they refer b. A pronoun and its antecedent agree – both singular or both plural Maggie ate her apple The students went to their classes Wrong: The students went to his classes 2. Indefinite pronouns refer to nonspecific subjects. Ex: anyone‚ everybody a. They may seem to have plural meanings‚ but you have to treat them as singulars in formal English Everyone performs at his or her own
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very difficult in early times. During years 300 and 600‚ observations of changes in salinity‚ temperature‚ and smell helped civilizations
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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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