good-genes and sexy-sons hypotheses focus on direct benefits associated with female choice. The good-genes hypothesis proposes that a female will choose to mate with males that they believe will produce better offspring. Typically this decision is based off a phenotypic trait that is an sign of higher genetic fitness‚ however sometimes these traits are not good indicators. The sexy-sons hypothesis is similar however it posits that females will choose the most attractive males to mate with so that those
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Hypothesis Testing The sole purpose of hypothesis testing is to determine whether or not research that has been collected is proved or disproved; usually allowing up to a 5% error factor. By using this 5% margin of error a researcher can consider the question of research being conducted is proven. There are five steps to be followed in doing hypotheses testing. The steps are: developing the research question‚ specifying between null and alternative hypotheses‚ calculating the statistic‚ computing
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on the number of stomata of a leaf.” Research Question: How do differing leaf heights affect the number/density of stomata of a leaf? Hypothesis Stomata are pores‚ typically found under the leaf (lower epidermis)‚ that control the gas exchange of transpiration‚ where water vapor leaves the plants‚ and carbon dioxide enters. I predict that the stomatal density on high leafs is higher than on low leafs. During photosynthesis the chloroplasts in the leaf cells synthesize ATP from ADP as
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Lab 5: Osmosis Purpose: The purpose of this lab is to familiarize you with osmosis and‚ specifically‚ what happens to cells when they are exposed to solutions of differing tonicities. Hypothesis: If we add higher concentrations of sugar to the dialysis tubing‚ then the net movement of coffee into the dialysis tubing will increase. Materials scale or balance 24" dialysis tubing 4 transfer pipets sugar scissors rubber bands four coffee cups - they need to be roughly the same size
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1. The Schumpeter hypothesis links firms operating under a monopoly market structure as most important for technological innovation. Arrow‚ on the other hand‚ suggests most progress can be achieved in a perfectly competitive market. Compare and contrast these two arguments. An important issue in economics is how market structure affects innovation. In 1934‚ Schumpeter observed that some markets become increasingly concentrated‚ both with respect to innovation activities and market competition
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Osmosis Lab Report Hypothesis: Osmosis will occur when there is an uneven distribution of solute in a solvent. The higher the solute in solvent‚ then there will be a higher rate of osmosis through the diffusion gradient forming a hypertonic or hypotonic solution. Solvent with equal or no solute forms an isotonic solution. Materials: Distilled water‚ sucrose‚ dialysis tubing‚ string‚ 250 ml beaker. Procedure: To demonstrate and isotonic solution we needed 3 inches of dialysis tubing. We
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(2007) too has endeavored to clarify that the new hypotheses like Modernization Hypothesis and Reliance Hypothesis frame the past attempt to clarify the relationship existing between different nations on the planet and why there exist a distinction between the Underdeveloped nations and the creating countries.Assignment Master AustraliaIn this setting just we allude to the Modernisation Hypothesis and the Reliance Hypothesis which do have a few likenesses in spite of the fact that the differences
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the effect of music and age on STM (WM). The results of the experiment were confirming the hypothesis to some extent. The hypothesis was that the older the subject conducting the experiment is‚ the higher the cognitive performance‚ which will result in a higher level in completing the task. Also the subjects will be distracted when the music is played. However‚ some of the results did not match the hypothesis; such as Group2 (Year 9 Newman) that completed the task and reached a higher level with the
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my aunt’s turn and when we went to eat the mashed potatoes they were super salty. After thanksgiving dinner that year I became interested in figuring out how the using the same recipes the outcome could be so different. Background Information: Osmosis is the of a solvent across a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration. The water being the solvent can move across the membrane but the salt
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or volume of the plant cells does not change‚ means there is no net loss or gain of water. Introduction This study shares the results of an effort to understand diffusion and osmosis in general. It focused more into osmosis in plants cell‚ and how to indirectly measure osmolarity in potato tuber tissue. Osmosis is the diffusion specifically of water across a membrane. Diffusion occurs when certain substance‚ such as an ion‚ is more concentrated on one side of membrane. If the membrane allows
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