Plate tectonics

When it comes to physical appearance, there are many natural causes for the different variations of certain characteristics. Humans come in all shapes and sizes with enough combinations that it is not rare to have similar features to someone who may have a completely different background than you. Most of these characteristics occur naturally throughout one’s life, but some individuals take it upon themselves to create their own characteristics through a process called body modification. People…

Discussion: Each test is a pertinent contribution to drawing an educated conclusion. After performing the gram staining and observing which unknown culture was gram positive, a catalase test was performed. The catalase test allows lab workers to differentiate Staphylococci and Streptococci genus. The test was performed only on the gram-positive culture. Bacteria that respire by the use of oxygen, otherwise known as aerobic respiration, produce enzyme or “catalase”. This protects the bacteria…

Thermal dispersion mass flow meters, often called thermal mass flow meters, rely on the transmission of heat from a body to a gas flow. Inside the flow meter sensor head, a heated resistance thermometer (RTD) is electronically compared with an unheated RTD sensor. As a gas passes the heated RTD, heat is transferred from this sensor to the gas, and hence the RTD is cooled, thereby reducing the temperature difference between the two sensors. Heat transfer from the RTD to the process gas is based…

Over the years, stretching an ear piercing has become widely popular among teens. The bigger that ear piercing is stretched the better it is. People find the whole idea of ear stretching to be gross and pointless. Ear stretching is not understood by older generations because of the terminology used when referring to ear stretching, the process of getting them to a specific size, and the whole idea of someone wanting to have giant holes in their ears. Older generations cannot seem to wrap their…

6. Three Nutrient Agar Plate (NAP) were contaminated as follow to illustrate that there are microorganism all around us and to demonstrate the necessity for proper aseptic technique. a) The lid of the first agar plate was removed and the exposed agar was placed in the building on the laboratory rack for 3 hours. The lid was replaced and labelled as “air”. It was then incubated at room temperature. b) A second Petri plate was divided in half using a marker. Two cotton sterile swab were moisten in…

dishes were left to dry and solidify at room temperature for hour to rid of moisture. After an hour, the dishes were placed in a refrigerator at three degrees Celsius. The agar plates were monitored every few hours to make sure that the plates did not accumulate moisture. If there was visible condensation on the agar plate, they…

3. I chose the plate with dilution factor 10-7 to count. This was the only plate that yielded an appropriate CFU, therefore, it was the sample with the highest countable colonies. The plate with the dilution of 10-6 yielded Too Many To Count (>300) while the plates with dilution 10-8 and 10-9 yielded Too Few To Count (<30). 4.If I were to do a total count on this sample, as opposed to a viable count, the total count would be higher because it accounts for all cells, not just visible and…

used. The first step in identifying any unknown bacterium is to grow a culture on a nutrient agar plate. This bacterium was also plated on a MAC plate, which is both selective for gram-negative bacteria and differential as well. On the NA plate, bright red colonies were present; on the MAC plate there was bacterial growth as well, but no color change was observed. This lack of color change on the MAC plate indicated that the bacteria did not ferment lactose. A Gram stain was then performed to…

Coliscan easygel nutrient broth was stored in the freezer. Around 24 hours prior to sampling, the broth was moved to the refrigerator to thaw. The sampling procedure follows the procedure stated in the Coliscan Easygel Instructions. When we were ready to begin sampling, the thawed broth was placed into a cooler. We started sampling at Cornerstone pond then move to the Wyoming site, then downtown Grand Rapids, then Plainfield, and then Versluis lake. The procedure for Cornerstone pond and…

Kaufman addresses the brutal murder of openly gay teenager Matthew Shepard in a small town of Laramie, Wyoming in 1998. The chronological structure of the play draws together interviews conducted after the event by Kaufman and fellow members of the Tectonic Theatre Project. Additionally, Kaufman uses these journal entries to retell and reconstruct what happened on the night of Matthew's assault, addressing the issue of gay hate crime. The play itself was structured into three acts. The first act…