Brain Activity During Sleep Imagine spending 1/3 of your life doing something and not knowing why you do it or what purpose is behind it. Sleep is one of the greatest mysteries that science is struggling with. It was once considered an inactive or passive state in which the mind used to recuperate from the day. This of course is not true‚ since the brain is in active stages while asleep and sometimes may even reach to a higher state of awareness than when awake. This fact has bewildered many scientists
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rubbed on ebonite. Copper‚ rubber or gold Name one substance that will get a positive charge when rubbed on ebonite. acetate‚ glass‚ wool or human hair One piece of glass is rubbed with silk. A second piece of glass is rubbed with a rubber balloon. What will be the charge on both pieces of glass The glass will have a positive charge when rubbed with either silk or rubber. Which piece of glass will have a stronger charge and explain why. The glass rubbed with rubber will have a stronger positive
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The Lack of Freedoms in Minorities During WWII During WWII‚ many Americans and the President himself cherished four essential human freedoms. The first of which was the freedom of speech and expression where everyone had an equal voice. The next promised freedom was the ability to worship God in any way shape or form. The third freedom was the freedom from want‚ meaning all citizens may live a healthy and happy life. The fourth and final freedom was the freedom from fear‚ which means everyone may
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Anatomy and Organization of Skeletal Muscle Skeletal Muscle Cells and Their Packaging into Muscles 1. Use the items in the key to correctly identify the structures described below. g; perimysium c; fascicle Key: a. b. c. endomysium epimysium fascicle fiber myofibril myofilament perimysium sarcolemma sarcomere sarcoplasm tendon 1. 2. 3. 4. 5. 6. 7. connective tissue ensheathing a bundle of muscle cells bundle of muscle cells contractile unit of muscle i; sarcomere d; fiber a; endomysium
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translate and have an opinion on the Bible‚ not just the Catholic priests. After reading it they then disagreed with what the Catholic Church was teaching them before and learnt that the Catholic Church was corrupt and people couldn’t buy their way into heaven‚ and soon people opposed the Catholic Church’s understanding of the Bible and started their own Protestant religions. This happened because the Catholic Church had lost power and people could think for themselves‚ and the printing press printed
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tissue in a muscle. Epimysium (sheet of connective tissue that covers a muscle as a whole)‚ endomysium (delicate connective tissue membrane covering the highly specialized skeletal muscle fibers) ‚( perimysium (tough connective tissue surrounding fascicles) 2. Myofibrils are composed primarily of two protein filaments called _____________actin__________ and ___myosin_______________________. 3. What is a motor unit? Functional unit composed of a single motor neuron with the muscle cells it innervates
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http://www.kidshealth.org/kid/htbw/muscles.html 1. What are some examples of functions of your muscles? Lifting things 2. What are muscles made of? Elastic tissue 3. What are the 3 types of muscles? Smooth cardiac and skeletal 4. What is the difference between voluntary and involuntary control of muscles? Involuntary you have control and voluntary it does it for you 5. What are smooth muscles? Where are they found? What do they do in these areas? Are they under voluntary
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Adolescence is considered to start with the onset of puberty‚ which is as a period of transformation from a stage of reproductive immaturity to a stage of full reproductive competence. This period in the life span of a person makes them assume the ability for reproduction and signs of puberty in them. Many teens in this period of development not only bring physical change but psychological changes that make the child a qualitatively different person. These changes affect the personality and adjustment
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Introduction: The purpose of this experiment is to measure the effects of changes in temperatures and pH on enzyme activity in skeletal muscle‚ particularly the activity of lactate dehydrogenase (LDH). LDH is a glycolytic enzyme which converts pyruvate to lactate in the following equation: LDH Pyruvate+ NADH ------------ Lactate + NAD The reaction above can move in both directions‚
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Unit five: Principles of supporting business events Assessment You should use this file to complete your Assessment. • The first thing you need to do is save a copy of this document‚ either onto your computer or a disk • Then work through your Assessment‚ remembering to save your work regularly • When you’ve finished‚ print out a copy to keep for reference • Then‚ go to www.vision2learn.com and send your completed Assessment to your tutor via your My Study area – make sure it is clearly marked
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