Leopard Frog Kingdom: Animalia Phylum: Chordata Subphylum Vertebrata Class: Amphibia Order: Anura Genus: Rana Species: Rana pipiens I. Purpose: To examine the frog externally and internally by dissection. II. Materials: 1. Frog 2. Dissection pan 3. Manual 4. Dissection utensils III. Methods: A. External: The dissectors set up for their lab by getting the following materials: the frog‚
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Exercise 3: Neurophysiology of Nerve Impulses: Activity 1: The Resting Membrane Potential Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. What is the approximate concentration of K+ inside a typical cell (intracellular concentration)? You correctly answered: a. 150 mM 2. What is the approximate concentration of K+ outside a cell (extracellular concentration)? You correctly answered: b. 5 mM 3. What is the approximate concentration of Na+ inside
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Background: As members of the class Amphibia‚ frogs may live some of their adult lives on land‚ but they must return to water to reproduce. Eggs are laid and fertilized in water. On the outside of the frog’s head are two external nares‚ or nostrils; two tympani‚ or eardrums; and two eyes‚ each of which has three lids. The third lid‚ called the nictitating membrane‚ is transparent. Inside the mouth are two internal nares‚ or openings into the nostrils; two vomerine teeth in the middle of the roof
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Rivalry between the United States and the Soviet Union for control over the postwar world emerged before World War II had even ended. U.S. presidents Franklin D. Roosevelt ‚ Harry S.Truman‚ and Soviet premier Joseph Stalin never really trusted one another‚ even while working together to defeat the Nazis. This mutual mistrust actually began as far back as 1917‚ when the United States refused to recognize the new Bolshevik government after the Russian Revolution. Stalin also resented the fact that
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LAB ONE: Exercise 4 – Endocrine System Activity 1: Metabolism and Thyroid Hormone Part 1: 1. The normal rat had the fastest basal metabolic rate. 2. The metabolic rates differed between the normal rat and the surgically altered rats because the surgically altered rats didn’t have a thyroid or pituitary gland and therefore‚ the normal rat had a faster basal metabolic rate. The results turned out to be the way I predicted them to be. 3. T3 and T4 would be missing in the animal’s blood
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EXERCISE 9: RENAL SYSTEM PHYSIOLOGYHere is 9 got 95% Still need help on final 132 | ACTIVITY 1: The Effect of Arteriole Radius on Glomerular Filtration Answers 1. According to your lab manual‚ in humans the glomerular filtration rate (GFR) ranges from _____ to _____ ml/minute. 80 140 2. When the radii of both the afferent arteriole and efferent arteriole were set at 0.45mm‚ the GFR was approximately ______ ml/minute. a. 40 b. 60 c. 80 d. 120 C. 3. True or
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abdomen. Then cut down between the legs to free the skin around one leg from the rest of the skin‚ cut any attachments of the skin to the body. Holding the upper part of the frog firmly in one hand pull the skin down off of the leg. Be careful when pull the skin off around the knee as it is attached more firmly there. Place the frog dorsal side up in the tray and make sure to keep the muscles moist with ringer solution at all times. Using a blunt (glass) probe separate the muscles of the upper thigh
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Good morning family and friends of the beloved Eugina S. Frog. My sister and I have been through a lot of hardships together‚ from our father passing and us hoping to a new pond. Eugina was a curious and unique frog‚ she brought happiness everywhere she went. She was well-known on the west side of the pond. Eugina lived to be twelve years old‚ she had 1‚000‚200 babies with her husband Robert A. Frog. In the twelve years that Eugina lived‚ she accomplished many goals that she planned to succeed. For
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The purpose of this experiment is to examine the results of stimulation on a frog’s sciatic nerve by looking at its compound action potential‚ the conduction velocity‚ and by quantifying the total and absolute refractory period between the nerve at room and cold temperature. An oscilloscope‚ preamplifier‚ and stimulator were used to stimulate the frog’s nerve located in the nerve chamber. Threshold voltage was determined by stimulating the nerve at increasing voltages until a compound action potential
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The Frogs tells the story of the god Dionysus‚ who‚ despairing of the state of Athens’ tragedians‚ travels to Hades (the underworld) to bring the playwright Euripides back from the dead. (Euripides had died the year before‚ in 406 BC). He brings along his slave Xanthias‚ who is smarter and braver than Dionysus. As the play opens. Xanthias and Dionysus argue over what kind of jokes Xanthias can use to open the play. For the first half of the play‚ Dionysus routinely makes critical errors‚ forcing
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