Red Color Light Experiment Lab Report

The dependent variable is pulsation rates of L. variegatus before and after they were in the treatments. The standardized variable of this experiment would be the temperature of the surroundings of the L. variegatus, the three pulsation rates taken for each worm before and after the treatments, and also the amount of time each worm was kept in their respective treatments. The level of treatment for this experiment would be ten because of the six different concentration treatments of caffeine and nicotine along with the four household drugs. The sample size of the experiment differed from some treatments to other. For the three different concentrations of caffeine and nicotine, the sample size was 18 black worms each. The sample size of the control treatment of week 1 was 6 black worms. 12 black worms were used for the control of week 2, decaffeinated coffee and instant coffee. 11 black worms were used for the tea treatment and 15 were used for the tobacco treatment. There were three replications of the pulsation rate readings per worm before and after the treatment. With all this information we were able to get the results we got.

Finally, the last part of the experiment was to polarize the skylight. I had to go outside around 12 noon and looked at the sky through one of filters about 90 degrees to the direction of the sun. I looked at different regions of the sky and recorded my

Every cell transports materials in and out throught something called a membrane. There are many different methods of transport in the cell Saccharomyces cerevisiae (Serrano, 1977) We want to know does adding higher concentrations of azide more effectively block dye transport? We tested the transport of dye in yeast cells with a metabolic inhibitor. When we did this we showed no difference in the absorbance between different azide solutions, and our control. From this we concluded that azide has no effect on the transport through a yeast cell membrane.

The Uptake of Neutral red dye by saccharomyces cerevisiae in the presence of a metabolic inhibitor

There is always some degree of inaccuracy in any experiment. I think that there were several factors in my experiment that made the results slightly inaccurate. These were;

After completing the lab The Effect Colors of Pen have on Termites Behavior it could be identified that termites like black pens the most and prefer to follow an ink line. In both trials the termites seemed to avoid the squares for the most part, but when they got near one they would walk around the outside of the square. Out of all the colors it was evident black was the preffered color because they spend 11 seconds inside that square 2 seconds in the blue, and 3 seconds in the red. While this seems like a short period of time considering each trial was 2 minutes long the termites spend a good majority of that time near the black square which we did not put into our data table.

I always look for candles to burn at dinner parties or to give a soft light into a room, I always felt that my white candles burned much quicker than those that are colored. I believe that the lighter color candles will burn quicker than the darker colored candles. During this experiment I plan to compare the difference in candles and the length of which they burn based on the color of the candle. Does the color of the candle make it burn at a different rate? To conduct this experiment I picked five different colored candles that were all the same brand, type, and length. (White, yellow, red, maroon, and a forest green) I set a timer for one hour and thirty minutes. With the help of friends,

When LED & CO., an extremely interactive business on both social media and through their cooperation with the press, became inactive, many were shocked. Just days after announcing their newest project which would allow them to learn a lot more about LEDs, they refused to talk about the results of the experiment. However, after six months of secrecy, the head researcher at LED & CO. , Dr. Lucy Hales, finally sat down with us to explain what exactly occurred.

In order to test the hypothesis, the researcher obtained the Pyrocystis lunula and separated them into three different jars. The researcher then placed

Weber’s Law is a principle to be perceived as different, two stimuli must differ by a fixed percentage (Myers, 2015). The just noticeable difference is when a test stimulus just noticeably becomes different from the original stimulus. The fixed percentage required depends on the nature of the stimulus which includes; light and sound (Bolton et al…2016). If the original stimulus stays at a constant intensity, the test stimulus intensity would eventually increase above the original stimulus if the intensity continued to increase. Our hypothesis states as original light intensity increases, change in intensity will increase, reflecting a positive correlation.

Introduction: Genetic color polymorphism is an ideal model system, which can be used to study evolutionary stages for numerous reasons. First, high heritability can be shown from genetic basis that color morphs provide. Second, separate color morphs can provide visual markers and can be seen in isolated individuals when observing selection in the wild. With use of morph frequencies, genotype frequencies can be detected easily and derive allelic frequency modifications over space and time. There have been numerous Drosophila studies that have used visual eye marker phenotypes to study evolutionary changes, which have been shown that color morphs can be correlated to strong natural and

Ultraviolet (UV) light is a type of radiation that is invisible to the naked eye. UV light has a wavelength that ranges from one hundred nanometers to four hundred nanometers which is the reason we cannot see it. Interestingly, some animals can see the light and various insects as well. UV light comes from the sun, and too much of this is often responsible for the red “sunburn” that we are subject to after too much time in the sun. Things could be much worse, however, if the earth did not have its atmosphere which stops a large amount of UV light from making contact with us. UV light was discovered by a German physicist named Johann Ritter in the year 1801. Similar to the way infrared was

Figure 1: Line graph plotting the mean changes of blood glucose concentrations recorded (mmol/L) over timed intervals (30 min) spanning the duration of the two-hour experiment. As the associated figure legend indicates, the red line is the resulting change in mean blood glucose concentration in response to individuals undergoing the ‘Glucose Rest’ experimental condition. The blue line is a recording of the mean capacity for individuals to dispose of glucose load when required to exercise (Glucose Exercise condition). As an extension of the glucose tolerance test, the green line is a mean plot of how fructose consumption affects blood glucose concentrations. The last experimental group ‘Glucose Sip and Spit’ in orange, displays how to consumption or rather lack of glucose, affects one’s ability to dispose of glucose load, hence affecting the blood glucose concentrations (mmol/L).

This lab is so you can explore the bending of light with two mediums. You will solve questions upon the intensity of the light and changing the angle.

In experiments, there are always cases of error. One of my errors which also could lead to my experiment being inconclusive would be that all the people have different levels of color blindness and I did not know which type each person had. Another would be having a big age gap in the older males that could have affected my data because there was only one outlier. I could improve my project by finding out what level of color blindness they have and doing it based on a level. Also I could have done closer ages and not had such a big outlier. If I redid my experiment I would have done my test on a certain level of color blindness because the person's answer would vary depending on the level they had. My findings are important because it could