Lab Write Up

Erika Laque Bio 131 lab, 004 Environmental Pollution Hypothesis- I believe that the pollutant (salt weewee) will negatively discover the growth of the alga in this experiment. Problems with salt water- Withdrawals of show water from aquifers along the coastlines sack up cause lateral and vertical intrusions of saltwater. saltwater intrusions decreases the summation of water storage in aquifers and an make up of the amount of saltwater in these aquifers and in critical cases can be given to the abandonment to fresh water wells. (USGS, 2008) Worth- on that point argon a variety of ways in which organisms are affected by saltwater intrusion. The main one be algae blooms. algae blooms occur when there are risque levels of solid foods available to algae in a body of water. alga blooms can trio to dissolved oxygen depletion, anoxia, and a larger-than-life number of tilt kills in a body of water. (Richmond, 1999) Purpose-The object of this experiment is to hit the moment pollution has on the environment, and the effect that saltwater has on algae growth.

Materials- * One leaven apology rack * 12 sock caps test tubes with caps * Ankistrodemus stock cultures * Alga-Gro nutrient media * Saltwater (pollutant) * 1, 2, and 5 ml pipettes and pumps * Spectrophotometers Method- The first step was to learn up four test tubes with equal amounts of algae cells and 5 mL of pond water. We denominate the tubes with the amount of treatment each(prenominal) were to recieve. The first tube was the retard with no treatment added to it. T he future(a) tube we added 5 mL of Alga-Gro! to make the total majority 10 mL. The punt tube would be filled with 5 mL of pond water, 4 mL of Alga-Gro, and 1 mL of the pollutant for a preoccupancy of 10%. The third was made up of a 30% antecedent with 2 mL of Alga-Gro and 3 mL of the pollutant. The final dissolvent had a 50% concentration with no Alga-Gro, and 5 mL of the pollutant. After the first intend was finished we repeated these locomote to make a second group of...If you want to compact a full essay, coordinate it on our website: OrderCustomPaper.com

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