Based on the curves above, this data shows three corresponding curves, type i, ii, and iii. The red curve shows a type i curve because as one can see the curve is starting with a high survival rate and as soon as the lifespan begin to decline, the individuals of the population began to reach its death. The blue curve demonstrates a type ii survivorship curve because it roughly shows a constant mortality rate for the species in their entire lifespan. Lastly, the yellow curve shows a type iii curve because at the beginning of their lifespan, the bubbles started to decline, thus the bubbles death will likely be at the start of their lifespan.
Next, on the graph, there is a constant death rate for population B because there is a pattern or a certain instance that shows a bubble getting closer to their death and the survival of the bubbles is dependent on the environmental factors. For example, one of the environmental factors that affected the bubbles survival was the wind. On the day of our experiment, it a very gloomy and windy day, which could’ve had an implication on the bubbles survival.
To add, the treatments that are given to the bubbles in each experiment showed that three different species that are used to different environments. For example, the bubbles that we did not disturb could be a representation of species that were born and left alone to
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This is because if individuals are able to survive due to the new advanced technology then the population will decline, but there will be a certain time when the population will start to increase, raising the curve upwards. If the birth rate equals to the death rate the population will have a zero population growth since the growth neither increases or decreases. This means that there is a limiting number of births happening to what needs to be in the
Thorough analysis of the graph displayed enough evidence suggesting that an increase in substrate concentration will increase the height of bubbles until it reaches the optimum amount of substrate concentration, resulting in a plateau in the graphs (figure 2). Hence; supported the hypothesis.
Also we might have been shaking the test tubes at different speed which may have caused a greater number of bubbles to be released. Overall I felt that the experiment was accurate and reliable and there was not much that could have been changed on it.
I found that there are varying ages of death in each date category, but for the most part, the ages increased considerably from century to century. This, to me, would be a sign of the technology progression that we have experienced and the modern medical discoveries to aid in the healing processes of some previously fatal diseases.
In, The Population Bomb by, Paul R Ehrlich, he explains the problem of population increase, and how there are people everywhere! The feeling of feeling over populated. He talks about how if there are more people then there is more food that needs to be produced then ate. He explains on the rich people becoming wealthier and the poor are going to be even poorer and there is going to be a starvation. Population is doubling every year and how our energy is turning into
If there were less people dying and the amount of births stayed the same, a country could become over populated. Condorcet recognized this and addressed it by saying:
Appearing in the 1903, The Souls of Black folk had emerged, a collection of 14 proses, written by one of the single most intellectual blacks in America, W. E.B. DuBois (Oxford Companion). This dynamic collection of essays reflect on African American history, sociology, religion, politics, and music. DuBois begins saying “The problem of the 20th century is the color line (5). This quote pronounces DuBois bases for his collection, that is being different form the others (Whites) makes you feel like you are being shut out from their world by a vast veil; hence the color line(8). On the other had we have Birth of a Nation, which comes out later in 1915 (TCM). Ironically it becomes the top selling film in White America during that time, but degrades everything that DuBois and another activist stood for. While DuBois hopes to educate White and Black America on their boundaries, the color line, the film’s director, D.W. Griffith, undermines these ideas. Defiling images of African Americans by distorting the perception of Blacks using stereotypical examples such as the mammies, mulattos, and bucks, Griffith tries to justify that blacks were inferior to Whites. In spite of the many controversies that are expressed in the film, it had become a known as the most innovative, American Epics and was a top seller during its time because of Griffith’s technical breakthrough and format. While comparing and contrasting these two pieces I hope to reveal to you this why this ‘double consciousness’ exist, even todays society as a result of these stereotypes displayed in “The Birth of a Nation.”
“I've told her and I've told her: daughter, you have to teach that child the facts of life before it's too late” (Hopkinson 1). These are the first three lines of Nalo Hopkinson's short story “Riding the Red”, a modern adaptation of Charles Perrault's “Little Red Riding Hood”. In his fairy tale Perrault prevents girls from men's nature. In Hopkinson's adaptation, the goal remains the same: through the grandmother biographic narration, the author elaborates a slightly revisited plot without altering the moral: young girls should beware of men; especially when they seem innocent.
“I've told her and I've told her: daughter, you have to teach that child the facts of life before it's too late” (Hopkinson 1). These are the first three lines of Nalo Hopkinson's fairy tale “Riding the Red”, a modern adaptation of Charles Perrault's “Little Red Riding Hood”. Perrault provided a moral to his fairy tales, the one from this one is to prevent girls from men's nature. In Hopkinson's adaptation, the goal remains the same: through the grandmother biographic narration, the author advances a revisited but still effective moral: beware of wolfs even though they seem innocent.
There is also the potential of human error within this experiment for example finding the meniscus is important to get an accurate amount using the graduated pipettes and burettes. There is a possibility that at one point in the experiment a chemical was measured inaccurately affecting the results. To resolve this, the experiment should have been repeated three times.
All of these ingredients mixed together makes foam by a chemical reaction. The foam “bubble” is filled with oxygen; the yeast is used to remove the oxygen from the hydrogen peroxide. This process is very fast, and that is the reason the foam is formed. During the chemical reaction the bottle or tube starts to get warm. This chemical reaction is called Exothermic Reaction, which means it not only created foam it also created heat. This experiment is done in a long plastic tube. Once the process is occurring it starts to overflow out of the tube and looks like toothpaste. My second experiment is to compare the chemicals, the size of the foam and the reaction time. For the second run the ingredients are: potassium permanganate, 50% hydrogen peroxide, dish soap and water. Potassium permanganate is used for a bigger or larger reaction. It is an inorganic chemical and is a strong oxidizing agent. They are crystals with a bright purple color to them. The color of them is why this experiment eliminated food coloring. The chemical reaction between hydrogen peroxide and the potassium permanganate is very vigorous and it releases steam, but with the water and dish soap mixed in with the two chemicals makes it somewhat bubble and explode into a big tubular
Population growth is the change in population over a period of time. It happens due to a number of factors such as standard of living, cultural factors, and government policies. When the standard of living become better such as the improvement of social conditions ( shelter, sanitation, clean water , health care and etc) death rate and birth rate reduce as more people become inclined to have fewer children. As standard of living increases, there will be more immigrants thus an increase in population. Government policies which encourage people to have lesser or more children also has a significant effect on birth rate too.
The duration of the experiment should be increased as the thermal death times of B. subtilis at 60, 70 and 80°C were unable to be determined within 110 minutes. The duration can be increased to 180 minutes so as to better investigate its thermal death times. If the presence of bacterial growth was still observed after 180 minutes of exposure, it can be assumed that B. subtilis is able to survive well in that temperature. An exposure time of one day can be carried out to confirm this assumption.
This problem of population growth leads to a number of solutions that could have significant implications on the quality of life. Taking no action and allowing population to grow unchecked could possibly risk the entire human species if food or clean water were to become unavailable worldwide. Aiming for zero population growth would in theory maintain the existing quality of life since a stable population would not increase their use of resources. However not all resources are renewable, so scarcities could still occur with a fixed population size. In an extreme case permanent resource depletion under zero population growth could have the same extinction effect that unchecked growth can lead to. Despite the escalating risk of unchecked population growth, technological advances necessitated by the increase in population will at least maintain the quality of life and could possibly improve conditions.
Human population growth was relatively slow for most of human history. Within the past 500 years, however, the advances made in the industrial, transportation, economic, medical, and agricultural revolutions have helped foster an exponential, "J-shaped" rise in human population (Southwick, Figure 15.1, p. 160). The statistics associated with this type of growth are particularly striking: "Human beings took more than 3 million years to reach a population of 1 billion people...The second billion came in only 130 years, the third billion in 30 years, the fourth billion in 15 years, the fifth billion in 12 years..." (Southwick, p. 159). As human population has grown, there has been simultaneous growth within the industrial sector. Both of these increases have greatly contributed to environmental problems, such as natural resource depletion, ecosystem destruction, and global climate change. Also linked with the increasing human population are many social problems, such as poverty and disease. These issues need to be addressed by policy makers in the near future in order to ensure the survival and sustainability of human life.
Since the beginning of mankind, we have reached many great achievements. We have developed many technologies and theories to solve and explain many of our questions and to improve human life. Through our years of evolution, we have severely increased our own survivability. This has been a great achievement for us, but in the recent decade, overpopulation is becoming a great issue. In the recent years, the rapid increase in population growth has troubled many in the field of political sciences. Scientists like Ehrlich have calculated and expected our population to grow even faster if we do not act upon the increasing rate of population growth. The birth rate of our planet is increasing exponentially, meaning that the birth rate has surpassed the death rate and that the rate of growth will only increase if left alone. The politics of population is a debate that involves both the fields of sciences and moral and ethical considerations. Science may provide an insight of