The purpose of this study is to understand the feeding rate of Daphnia magna. D. magna is a species of Daphnia that belongs to the suborder Cladocera (Ebert‚ 2005). They live in freshwater and feed on small‚ suspended particles in the water. They are filter feeders. Phyllopods‚ which are leaf-like appendages‚ provide a filtering apparatus for the collection of food. These structures beat to produce a constant current of water‚ allowing particles to be filtered by fine setae on the thoracic legs.
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The SARS Virus: Background information and data analysis Henry Brown‚ Rugby School Summer 2003 Introduction SARS is a virus. Generally‚ they are only visible through an electron microscope. Viruses are not generally considered a living organism. Instead they are parasitic. They remain dormant outside of the host body‚ and if one happens to get inside the body‚ it can spread rapidly. It relies on the host’s cells to replicate. A good example is the influenza virus‚ which infects the
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Background Information on 1920’s and 1930’s America 1. What was the Great War‚ how did it begin‚ and how long did it last? Which countries were involved? World War I‚ also known as the Great War‚ was fought between 1914 and 1918‚ and it set the stage for politics‚ culture‚ and economics in the twentieth century. Serbia and other Balkan states gained their independence in 1878 after nearly five hundred years of Ottoman rule. Nations from both alliances wanted to increase their influence over the
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Question: How does the number of sit-ups affect your heart rate. Independent Variable (IV): Number of sit-ups ( 0‚5‚10‚15‚20). I chose these 5 increments because they are consistent numbers in which everyone can participate without it being to much. Dependent Variable: heart rate( BPM) +/- 4 ( number of beats in 15 seconds multiplied by 4). Materials: timer‚ flat surface‚ movable clothing Background: In this experiment I will test your heart rate and if it increases or decreases with exercise (sit-ups)
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The effect of exercise on heart rate Word Count THE EFFECT OF EXERCISE ON HEART RATE Abstract - Aims - This study is to ascertain‚ if there is an effect on heart rate after exercise. This is being done to see‚ if there is a difference between resting heart rate and heart rate after performing exercise. Method and results - The study was compiled of seven female students from the University of Huddersfield. For the exercise a step was used‚ a polar heart rate monitor was used for each
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Lab 1: Heart Rate Lab (Revised Fall 2010) Lab 1. Heart Rate‚ Physical Fitness‚ and the Scientific Method Prelab Assignment Before coming to lab read carefully the following pages on the scientific method and then answer the prelab questions at the end of this lab handout. Be prepared to discuss and/or hand in your responses to the prelab questions at the start of lab. Introduction Biology is a dynamic field of study whose aim is to unravel the mysteries of life itself. Throughout history‚ humans
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high internal temperatures and high blood alcohol levels‚ Renee would inform the detective of the following physiological information: The vasodilation caused by the consumption of alcohol increases the diameter of blood vessels‚ which increases the volume of blood that can pass through a vessel. This dilation of blood vessels decreases the amount of venous return to the heart. Also‚ this increased diameter of blood vessels and increased volume allows for less of the blood to come in contact with
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the farm laborers and spent time working with them. He used his experiences as material for his writing. He wrote a number of novels about poor people who worked on the land and dreamed of a better life‚ including The Grapes of Wrath‚ which is the heart-rending story of a family’s struggle to escape the dust bowl of the West to reach California. Steinbeck was awarded the Nobel Prize for Literature in 1962‚ six years before his death in 1968. The Depression: On October 29 1929‚ millions of dollars
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the 10-12 year old subject’s heart rate read 83 beats per minute (bpm). After doing jumping jacks the 10-12 year old subject’s heart rate read 96 bpm‚ that is a difference of 13 bpm. Before doing jogging‚ the 10-12 year old subject’s heart rate read 82 bpm. But after doing jogging for two minutes‚ the 10-12 year old subject’s heart rate read 92 bpm‚ that is a difference of 10 bpm. As it is shown in my data table‚ before doing sit-ups the 10-12 year old subject’s heart rate read 72 bpm. After doing sit-ups
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I. Title – The Effect of Volume on Heart Rate II. Problem/Research question – Your heart rate can be affected and changed using a variety of things. One thing that can cause your heart rate to change is the volume of audio. How does the volume of an audio track affect your heart rate? If the volume of an audio track is increased‚ the number of hearts beats per minute will increase as well. III. Variables – ❖ Independent Variable ➢ The volume of the audio track ❖ Dependent
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