Has on Primary Productivity Research Question: How does the amount of salinity in the water affect gross primary productivity? Hypothesis: The higher the salinity content in the water the lower the gross primary productivity values. Variables: Control- The group with zero salt added. Dependent- Dissolved oxygen reading. Independent- The salt concentration in the water. Introduction: On the surface waters of lakes and oceans‚ plants are mainly unicellular algae‚ and most consumers are microscopic
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Water lab Research Question: How many drops of water can fit on a coin? (Water properties involved are cohesion and surface tension. Cohesion plays a consequential role in the transport of water within plants specifically within the phloem. Surface tension also dictates an important role within the transpirational pull of the xylem.) Variables: Variables | Type of Variable | How it was manipulated | Independent | Water drops‚ different types of water | Determining how many drops of the
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Bio Lab Report Erica Patterson September 10‚2013 Intro to cellular and molecular Biology Lab Abstract: In the Biology Laboratory Manual by Darrell S. Vodopich and Randy Moore are results to a similar experiment. The studied the hypothesis of carbon dioxide production by yeast fed sugar is not significantly different than the carbon dioxide production by the yeast fed in protein. Their hypothesis is the one that has helped formulate ours. We also will be answering the same to questions “What
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Lab Report Density Name: Period: Problem How do you calculate Density? What units did you use for volume‚ mass‚ and density? When the cubes are placed in water which one will sink 1st? What is the ranking of the cubes lightest (1) to heaviest (10)? Is it true that the cube with the most mass will have the most density? Hypothesis I think the 1st cube was aluminum I think the 2nd cube was steel I think the 3rd cube was brass I think the 4th cube was copper I think the 5th
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cilia beat rates. This experiment took two cigarettes; one with a paper filter‚ and the other with charcoal filter. By taking mollusk gills and placing them in contaminated water from the two different smokes it could be seen that the cilia on the gills had a slower beat rate then cilia that were not in the contaminated water. This supported the hypothesis that smoking will inhibit the ciliary action and lower the quality filter the greater affect will be exhibited by the effected cilia.
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technique is: Number Moles Concentrated Solution = Number Moles Dilute Solution. An instrument called a spectrophotometer detects the amount of light that passes through the sample and the percent transmittance can be recorded from the meter. In the lab‚ multiple homogeneous solutions are made. There was not a way to determine the differences in concentrations‚ but the Spec 20 made it possible to measure the difference. The Beer-Lambert Law is a graph used to record
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FDA. This "approval" process‚ known as color additive certification‚ assures the safety‚ quality‚ consistency and strength of the color additive. Color additives are available for use in food as either "dyes" or "lakes". Dyes dissolve in water‚ lakes are the water insoluble form of the dye‚ are more stable than dyes‚ and are ideal for coloring products containing fats and oils. Allura Red AC is a red azo dye that goes by several names including: Allura Red‚ FD&C Red 40 and disodium 6-hydroxy-5-
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Alhia Harris October 18‚ 2011 Biology Lab report Proteins are very important throughout the body. They have a lot of functions in cells. Antibodies are proteins that help cells rebuild the cells when they are destroyed. Transport proteins move substances from one place to another. Regulatory proteins control cellular metabolism in a way that cells throughout the body can have the right amount of glucose in the blood. A common protein is an enzyme; in cells they speed up chemical reactions. For
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Ketchup Lab Report Problem: People visiting fast food restaurants complained that ketchup was dripping onto their fingers and clothes. What could we do to insure that the ketchup will not drop all over the customers? Hypothesis: If I put one ketchup packet in a hotter bath then it will move faster down the styrofoam plate. Independent Variable: The temperature Dependent Variable: The viscosity of the ketchup’s “runniness” Constants: The type of ketchup
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tadpoles in three local ponds. This experiment was used to test a class hypothesis that a specific pond would contain a higher density of tadpoles based on its location‚ availability of cover‚ sunlight availability and other factors. We hypothesized that Pond 4 would be highest in density due to the characteristics listed above. Materials and Methods: The Mark-Recapture method was used to gather data for each pond. Groups of five – six students collected tadpoles from each pond. Three students collected
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