Domoic acid

Results This lab compared two different streams against each other from a biological, physical and chemical bases. From this lab we are able to see the differences and similarities as well as the differences between each streams. For the Tippecanoe river there was a total of 20 organisms, 7 from the upstream transect and 13 from the downstream transect. This differed from Cherry creek have a total of 209 organism. This total was split a 110 down from upstream and 99 from the down stream transect

1. Explain how an acid and a base are distinguished and how the pH scale operates as a logarithmic function. An acid and base are distinguished by the negative hydrogen concentration in a substance. If a substances loses its hydrogen concentration, it is more acidic. If a substance accepts more hydrogen, it is considered a base. The pH scale operates as a logarithmic function because the value changed 10x or greater. A pH of 3 is 10x more acidic than a substance with a pH of 4. 2. Explain what

Do ionic compounds conduct electricity as (3 points) Solids No Liquids Yes Aqueous solutions (when the ionic compounds are dissolved in water) Yes Do covalent compounds conduct electricity as (3 points) Solids no Liquids No Aqueous solutions (when the covalent compounds are dissolved in water) No Part I Lab Insert completed data tables for each part of the lab. Be sure that the data tables are organized and include units when necessary. Melting Point (4 points) Conductivity (4 points) Part II Conclusion

Screening of different species of Aspergillus genera to obtain high level KA producer was previously reported by El-Kady et al.8 among which A. flavus, A. phoenicis, and A. wentii were found to produce 5 g/L of KA in submerged fermentation. In another study, Hazzaa et al.2 described about the KA biosynthesis ability of Aspergillus strains including A. oryzae var. effusus NRC14 (42.0 g/L), A. flavus NRC13 (41.0 g/L), A. tamarii NRC18 (22.0 g/L), and A. parasiticus (17.7 g/L). Improvement the KA production

Few of the outcrop samples were subjected forRock-Eval pyrolysis because most of them with low TOC values. The average S2(mg HC/g rock ) and hydrogen index (mg HC/g TOC) values of the examined well samples is 4.22and 202 respectively. These values and thecross plot of hydrogen index (HI)versus Tmax and S2 versus TOC (Fig.2 and 3)indicate that the kerogen contained in these rocksis mixed II-III. This result is supported by organic petrological study, which indicated that the organic matter is mixed

Research Question. What is the difference in nutritional content between Coke and Sprite? Aim. To see which cool drink, Coke or Sprite, has the best nutritional content. Hypothesis. Sprite has a better nutritional content than Coke. Motivation. In modern society cold drinks have become a popular consumable with many people drinking more cold drink than water. This is an issue because of the growing health issues relating to obesity, diabetes and many more in society, thus making it a worthwhile topic

The competitive indirect L'ELISA for glyphosate provides a sigmoid (logistic) standard curve downward with increasing glyphosate concentration (Figure 2). The sigmoid can be regarded as consisting of three parts: a linear dose–response region bounded by two tails of lesser slope. These tails have greatly reduced slope relative to the center portion of the curve. The low dose tail (closest to the vertical axis) represents the response produced by insufficient concentration of analyte to compete with

Explanatory Essay: Bottled Water or Tap Water? There are articles, flyers, and even books out in the market that try to persuade people to either use bottled water or tap water. While many believe that tap water is more beneficial to the body, others believe that the convenience and advertising of purified bottled water is acceptable enough for themselves. As we consume water, we concern ourselves with issues such as if it is harmful to the environment, if it is harmful to our health and whether

research question for the Alka Seltzer Lab is, “What is the effect of different surface areas of an Alka Seltzer tablets reaction time?’. Inside of an Alka Seltzer tablet there are two key ingredients; which are citric acid and baking soda. When a tablet is dropped into a liquid, the acid and baking soda show a physical reaction of fizzing and eventually dissolving. Materials needed for this lab was goggles, aprons, beakers, water of the same temperature, mortar pestle, and three alka seltzer tablets

Slime is a unique play material composed of a cross-linked polymer. It is classified as a liquid and is typically made by combining polyvinyl alcohol solutions with borate ions in a large mixing container. It often has an unpleasant odor, a green color, and is cold and slimy to the touch. In scientific terms, slime is classified as a non-Newtonian fluid. These are thick liquids that have a variable viscosity. Viscosity is a measurement of the resistance to flow when a shearing force is applied