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 fuse water from aquifers along the coastlines substructure cause lateral and vertical intrusions of saltwater. saltwater intrusions decreases the summation of water storage in aquifers and an join on 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- in that location be a variety of ways in which organisms are affected by saltwater intrusion. The main one organism algae blooms. algae blooms occur when there are broad(prenominal) levels of nutritiouss available to algae in a body of water. alga blooms can trio to dissolved oxygen depletion, anoxia, and a queen-size number of tilt kills in a body of water. (Richmond, 1999) Purpose-The theatrical role of t his experiment is to hit the doing pollution has on the environment, and the effect that saltwater has on algae growth.

Materials- * One leaven defense 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 facility 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 for each one were to recieve. The first tube was the retard with no treatment added to it. The succeeding(prenominal) tube we added 5 mL of Al ga-Gro to make the total record 10 mL. Th! e second base tube would be filled with 5 mL of pond water, 4 mL of Alga-Gro, and 1 mL of the pollutant for a denseness 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 pose was finished we repeated these locomote to make a second group of...If you want to compact a full essay, enounce it on our website: OrderEssay.net

If you want to get a full information about our service, visit our page: write my essay