Problem: Does prior exercise affect the ability to squeeze a clothespin? Hypothesis: After exercise‚ people will be able to squeeze the clothespin faster than those without prior exercise. Materials: For this experiment a timer and a clothespin were used. Methods: To begin this experiment an individual was asked to squeeze a clothespin as many times as possible within one minute and the results were recorded. Then this same individual was asked to exercise (run in place‚ preferably)
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Purpose: To observe epithelial tissue by using a microscope to compare prepared slides. Introduction: Epithelial tissue covers the whole surface of the body. It is made up of cells closely packed and ranged in one or more layers. This tissue is specialized to form the covering or lining of all internal and external body surfaces. Epithelial tissue can be divided into two groups depending on the number of layers of which it is composes. Epithelial tissue which is only one cell thick is known as
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1. OBJECTIVES (a) To determine the equivalent circuit parameters of a 3-phase squirrel-cage induction motor from laboratory test data. (b) To determine the performance characteristics of an induction motor under load conditions. (c) To control the no-load speed of an induction motor. 2. INTRODUCTION 2.1 Three-phase squirrel-cage induction motors An induction motor is a transformer with a rotating secondary winding. It has two essential components: an outer stationary stator and an
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EXPERIMENT 1: TITLE: ISOMERISM AND KINETICS IN COORDINATION CHEMISTRY OBJECTIVE: 1. To prepare and study the kinetics of the interconversion of some of the isomers of a typical coordination compound. INTRODUCTION: Isomerism played a central role to establish the basic concept in coordination chemistry while reaction kinetics of coordination compound is known as the area of continuing intense research activity. The mechanism of the reactions of coordination compounds relevance
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Walking‚ Skipping‚ and Running on the Heart Rate Due Date: Friday‚ November 23rd‚ 2012 Question: What is the effect of walking‚ skipping‚ and running on a person’s heart rate? Hypothesis: If the intensity of the action increases (walking<skipping<running)‚ then the heart rate will also increase because the faster the legs are moving‚ the faster the leg muscles need to contract. When the leg muscles contract faster‚ more energy is used‚ and the heart will pump faster to deliver oxygen
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the Daphnia magna’s heart rate Results The effect the various drugs caffeine‚ nicotine and epinephrine had on the Daphnia magna is displayed in Figure 1. After three sample trials were taken there was an average of 180 beats/min-1 ± 6.928 taken under normal conditions. The addition of caffeine caused an increase in the average heartbeat to change to 192 beats/min-1 ± 9.165 in the Daphnia magna tested. When testing the effect of nicotine on the Daphnia magna the average heart beat was 168 beats/min-1
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high carcinogen uptake as well as other chemical resulting in a higher chance of developing cancer and lower cilia beat rates. This experiment took two cigarettes; one with a paper filter‚ and the other with charcoal filter. By taking mollusk gills and placing them in contaminated water from the two different smokes it could be seen that the cilia on the gills had a slower beat rate then cilia that were not in the contaminated water. This supported the hypothesis that smoking will inhibit the ciliary
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shed as they grow. In front of the first abdominal segment locates crayfish heart in the dorsal portion of cephalothorax. Crayfish are poikilothermic as their internal temperature is proportional and similar to its surroundings. Thus‚ poikilothermic animal metabolic rate and their other physiological processes associate to its environmental temperature. Crayfish have an open circulatory system and neurogenic hearts due to which
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increasing heart rate. This increase causes a rise in O2 consumption and CO2 production‚ which shows an increase in metabolism. Does this hold true for every animal though? In this experiment we are using lab mice‚ Mus musculus‚ to see if the introduction of a predator scent (fox urine) increases‚ decreases‚ or has no effect on the metabolic rate within them. We will calculate the mass specific metabolic rate and use a t-test to determine if there is a significant change in metabolic rate when the
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Gregory Terrace Year 12 Biology Assessment Item 6: Extended Experimental Investigation Part A Term 1 2014 The Effect of Exercise on the Maintenance of Homeostasis Name: Jonah McLennan Class: C Teacher: Mrs Hart Group Members: James Wilkinson‚ Samuel Stark‚ Christopher Daly‚ Thomas Yip‚ Andrew McWhinney‚ Joshua Zuill. Due Date: Monday 10th March 2014 (Week 7) Abstract
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