Comparative Anatomy Title: Date: Aim/Hypothesis: To compare the anatomy of the cane toad and the rat in order to … Materials and Safety/Ethical considerations: List materials used in the dissection Explain the safety and ethical considerations when collecting and dissecting animals. You can refer to the email sent home about toad collection in this section. Method: 1. A rat and a cane toad were dissected to compare their similarities and differences in anatomy structure. 2. Newspaper
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Rat Dissection Prelab 1. Is your left like your right side? It should be similar to your right but there can be differences like if damage was done to one side or if one side was mutated and disfigured. 2. Name an animal that doesn’t have a left and right side. Snakes don’t have a left and right side but there is an interesting study about that which is that Adult snakes (16 of 20 snakes) preferred to coil in the clockwise direction. Many female snakes (15 of 20 snakes)‚ but few male
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Background The stress response in the body triggered by the sympathetic nervous system (SNS) contains two different chemicals – neurotransmitters and hormones. Neurotransmitters‚ specifically norepinephrine (NE)‚ are released into the postganglionic synapses of the sympathetic nervous system (SNS) during flight or fight response. NE carries out its effects on a target cell by binding to and activating adrenergic receptors. NE is usually eliminated through the reuptake into presynaptic cells and enzymes
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Draw a diagram of the rat when it is first cut opened and the internal organs are exposed. Identify and label the diaphragm‚ the stomach‚ the small intestine‚ the caecum‚ the heart‚ the left and right lung‚ the trachea and the esophagus. (Note: see Figure 22 on pg 470 for an example) b) What structure divides the thoracic and abdominal cavities? The Diaphragm divides the thoracic and abdominal cavities. c) What is the sex of your rat? Male. Part C Digestive System pg 467 Skip the Salivary
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Physics Name _______________________ Phet Solar System Simulation Lab Date ________ per _____ grp ____ Simulation open phet.colorado.edu ‚ play with sims ‚ Physics‚ Motion ‚ My solar System ‚ Run Now 1. Start What shape is the orbit of the planet ? ________________________________________________ Why does the “sun” wobble ? _____________________________________________________________ What is this principle called in Physics (Chap 6) ______________________________________________
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Criteria 6 8 10 Title Your lab report has a Title that is directly related to the lab experiment/ exercise. Your group or class must be able to come up with your own title You must make your own title based on scientific theory Aim You have clearly stated your aim Your aim is relevant and informative You must make your own aim based on scientific theory Background background information relevant to the lab experiment/ exercise You must be able to link your aim to the background The
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Lab #4: The Immune System Purpose: The purpose of this lab was to perform and understand the procedures of conducting an ELISA test to determine whether a particular antibody is present in a patient’s blood sample through a virtual simulation. Hypothesis: If I successfully complete this lab‚ I will then understand how to perform an ELISA test‚ the purpose an ELISA test‚ and also how to interpret the results of this test. Materials and Procedures: Materials: Howard Huges medical
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In our hypothesis we predicted that the enzymes in the pineapple will denature when the temperature is changed. The prediction was partly correct. Pineapples have special enzymes that denature gelatin molecules. Which is the reason why the pineapple and gelatin test tube remained filled with liquid‚ instead of turning into jelly which gelatin does when it’s molecules are not disturbed. Why our hypothesis was partly incorrect was lacked depth in that when changing the temperature by heating the pineapple
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Conclusion: Category 1: Momentum was found that after the collision was less than before the collision by 10%. This was not what has been expected‚ so the difference was fairly significant. This happened because of friction‚ when the two pucks collided‚ they have lost a bit of their momentum‚ so the momentum after the collision differed. Kinetic energy differed more than what was expected‚ it was significantly less after the collision‚ the difference before and after the collision was 63.7%‚
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fish both have circulatory systems that consists of a heart‚ blood and blood vessels. Insects have an open circulatory system‚ where the haemolymph circulates freely among the body cavity and not enclosed in vessels‚ unlike the closed circulatory‚ where the blood is transported via the blood vessels. Mammals have a double loop circuit‚ meaning that the blood passes through the heart twice in each circuit of the blood that is pumped around the body. Fish‚ however‚ have a single loop system‚ unlike mammals
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