The American cockroach was introduced to the United States from Africa as early as 1625. They belong to the Kingdom: Animalia, Phylum: Arthropoda, Class: Insecta (Insecta: Blattodea: Blattidae), Order: Dictyoptera, and Family: Blattidae. Its common name is American cockroach and scientific name is Periplaneta Americana (Linnaeus). American cockroaches are normally between one and one and a half inches in length. They are oval shaped and reddish-brow with yellow fringes on the area of the body behind the head as adults. They hide in dark crevices during the day, which could include: sewer and drainage systems, cracks and crevices of a house, steam tunnels, large institutional buildings and basements. They emerge at night to hunt for food. They’ll eat pretty much anything. Although it prefers sweets, they have been observed eating paper, boots, hair, bread, fruit, book bindings, fish, peanuts, old rice, putrid sake, the soft part on the inside of animal hides, cloth and dead insects. American cockroaches rarely come indoors unless there is heavy rain or they’re searching for food and ...
1). After they were gathered, the researchers filled one side of the choice chamber with the leaf litter and the other with sand (Fig. 2). The researchers left an empty section in the middle where they put the pill bug, so it could choose which side to go to. Once the choice chamber was prepared, one pill bug was placed in the center facing forwards where it could not see either habitat. A cover slip was placed on top of the choice chamber to prevent the pill bug from escaping. The pill bug was in the choice chamber for five minutes. Every one minute, the researchers observed which side the pill bug was in and recorded it. After five minutes, the researchers placed the pill bug into an empty petri dish. Then they repeated the experiment with the other two pill bugs.
There were approximately 8x the amount of pillbugs on the water side compared on the vinegar side. Many sources of error could have occurred during the experiment, however. One possible source of error was that about half of the pillbugs were actually sowbugs, an isopod crustacean that has extremely close relations with the the pillbug. The main difference is that sowbugs do not roll up. This could have been a source of error because the difference in the two species may have attributed to the preferences of the isopods in the experiment. A second possible source of error was uneven lighting on our experiment. We gave our best effort to control the lighting and background as much as possible so that the experiment would not be affected, but there could have been something that was overlooked because a classroom environment is not the easiest thing to control. The last source of error was something that could not have been avoided. As time goes on, the pillbugs could have slowed down their movements compared to when they were first dropped into the bin due to their natural
Since the beginning of human existence this race has been using science in order to protect and advance their society. However as time has progressed the use of this modification has created both positive and negative repercussions. In 1999, the community of Denton, Texas brought in an un-indigenous species to eradicate their fire ant problem. While bringing in this species, the phorid fly, did immediately benefit the community, it will also have long lasting effects on the ecosystem in Denton. In order to weigh both the risk and reward of the phorid fly, it is important to examine all sides of the arguments for and against them.
Who are the cockroach people? In basic words, they are the Chicanas and Chicanos, the Mexican-American race. They are the general population that do not belong anywhere but also belong to two different races, which are Mexico and America. They are considered the pariahs of both countries; it is possible that they are to white for Mexico or to Mexican for America. The novel, The Revolt of the Cockroach People by Oscar Zeta Acosta, is a captivating story of a Chicano lawyer named Buffalo Zeta Brown and every one of his hardships. He recounts the story of the Chicano individuals from his own experience, deliberately using dialect to highlight his outrage and energy for political injustices. Alongside dialect, Acosta additionally uses symbols
One-way analysis of variance (ANOVA) will be utilized for data collection since more than one variable were part of this experiment (Alenzi et al., 2010). In addition, the data will be compared to each other by using the scatter plot.
Throughout time, the Jewish people had been discriminated, oppressed, mistreated, and even killed way before the Nazi era. From Christ-killers to being the devil, the Jews were never truly accepted anywhere. When Hitler came around, his hatred towards the Jews and other minorities went in crescendo. First using “legal” actions to repress and signal out the Jews in Germany, then measures got worse by the second. Right before Germany invaded Poland in 1939, the Jews were banned from every aspect of German life, social, religious, economic, etc. Unfortunately, from 1939 through 1941, the German Wehrmacht having tremendous success, their new weapons and tactics such as the Blitzkrieg caught their enemies by surprise. As a result, more than six millions of Jews were now under the control of the Nazi
The two columns in the graph represent the mean values and the error lines represent the standard deviations of the tested grasshopper and human subject. The jumping distance of the grasshoppers was more than the jumping distance of humans and the TTEST value was less than 0.05.
Forensic entomology is the learning of all types of insects and how they connect with criminal investigation. Forensic entomology can tell us how long since the offspring’s death which is known as postmortem interval (PMI) and whether the body has been relocated since putting one foot in the grave, and what injuries it may have suffered. At the start of decomposition, insects launch a new community by hatching eggs on the remains; the eggs will emerge into cankers (larvae) that will graze upon the human organs and tissues. A Forensic entomologists can figure out what specific bugs are presently in the body and gauge how long the body has been left unprotected by investigating how far along the cankers have come; although, what is found isn’t
A similar study was performed on M. musculus in another experiment in which the metabolic rate was measured under two temperatures (5◦C and 25◦C) (Lynch et al., 1999). In order to compare the results, the metabolic rates at the separate temperatures of both studies were compared respectively. Their results were similar to the results from this e...