Think about mice racing each other. Would they prefer a smooth floor or a rough floor? This experiment will tell which floor the mice go faster on. To make this experiment work correctly‚ you would need to figure out what you need for this experiment‚ what would be contained in the experimental group‚ and how you would do it. The first thing before testing the mice‚ are figuring out what our materials are. You can’t just have a couple of mice run across the floor since you wouldn’t know the speed
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“The course of true love never did run smooth” Lysander said in A Midsummer Night’s Dream. This is a play is about a group of four Athenian lovers and their journey through love along with the ruler of Athens and his soon to be wife‚ and of course the King fairy and his wife. This quote from Lysander‚ one of the Athenian lovers‚ is relevant in this story because of the difficulties in all of the relationships. Lysander and his lover Hermia‚ Theseus‚ the king of Athens‚ and his lover Hippolyta‚ and
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Part 1 of 17 - 1.67/ 5.0010004 Points Question 1 of 60 0.0/ 1.667 Points All of the following belong to feedback systems which control homeostasis EXCEPT A. All of the above are basic components of the feedback system. B. control center. C. receiver. D. receptor. E. effector. Answer Key: C Feedback: Please review chapter 1. Question 2 of 60 0.0/ 1.667 Points Group of related organs that have a common function is called a(n) A. organ.
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linear (a straight line)? Your answer : b. no Stop & Think Questions: What is the driving force for blood flow? You correctly answered: b. pressure gradient How does the body increase the blood vessel radius? Your answer : a. smooth muscle contraction Correct answer: c. smooth muscle relaxation Experiment Data: Flow (ml/min) 4.0 12.6 30.7 63.6 117.8 201.0 321.9 490.6 Radius (mm) 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Viscosity 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Length (mm) 50 50 50 50 50 50 50 50 Pressure (mm
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1) How are osteoarthritis and rheumatoid arthritis different? Osteoarthritis usually affects people 60 or older and is caused by increasing wear and tear at the joint surfaces or from genetic factors affecting collagen formation. On the other hand rheumatoid arthritis is an inflammatory condition. It is caused by the body attacking its own tissues as well as allergies‚ bacteria‚ viruses‚ and other genetic factors. 2) When the triceps brachii muscle contracts‚ what movements does it produce? When
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(blood flow) coupling 1. blood flow toward alveolar capillaries directed toward lung lobules where PO2 levels are relatively high (CO2 levels are low) -alveolar capillaries constrict when PO2 is low -blood is directed to area to pick up O2 2. smooth muscle cells in walls of bronchioles are sensitive to PCO2 -increased PCO2 causes bronchiodilation -air flow directed toward lobules where PCO2 is high and CO2 is decreased (CO2 is bad) -these lobules contain CO2 obtained from blood (decreased
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Introduction Jan Swammerdam‚ who demonstrated that an isolated frog muscle could be made to contract when the sciatic nerve was irritated with a metal object‚ conducted the first muscle experiments between 1661 and 1665. Later‚ between 1737-1798 Luigi Galvani determined that frog muscle responded to electrical currents. The kymograph‚ which was invented in the late 1840’s lead to the revolution of experimental physiology because it enabled muscle contractions to be analyzed and recorded. The muscle
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Skeletal Muscle Physiology: Frogs & Human Subjects (1‚ 2‚ 5-8‚ 10-12‚ 14-16) 1. There is a greatr concentration of Na+ f ; there is a greater concentration of K+ e . When the stimulus is delivered‚ the ermeability of the membrane at that point is changed; and c ‚ initiating the depolarization of the membrane. Almost as soon as the depolarization wave has begun‚ a repolarization wave follows it across the membrane. This occurs as b . Repolarization restores the h of the resting cell membrane
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Learn to Play the Earnings Game (and Wall Street Will Love You) The pressure to report smooth‚ ever higher earnings has never been fiercer. You don’t want to miss the consensus estimate by a penny--and you don’t have to. By Justin Fox In January‚ for the 41st time in the 42 quarters since it went public‚ Microsoft reported earnings that met or beat Wall Street estimates The 36 brokerage analysts who make the estimates were‚ as a group‚ quite happy about this - the 57 cents per share announced
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System Human Biology The human body is covered by muscles‚ made up of more than 650 of them. The purpose of the muscular system is for the body to move‚ maintain posture‚ and produce heat. There are three different types of muscles tissues; cardiac‚ smooth‚ and skeletal. There are also two types of muscles are in the body; voluntary and involuntary. The ones which we can move are the voluntary muscles; the ones which move on their own‚ like the heart‚ are involuntary muscles. When muscles move‚ they
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