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Paragraph 1: Introduction - explain your lab. The lab that I chose to do was the “McGraw Hill Higher Education: Natural Selection - Virtual Lab.” I chose this lab because it was the one that most interested me, as I liked the format of the virtual lab. In this lab, I was able to manipulate both the environment and the allele frequency in order to record and investigate the generational breeding patterns of a group of organisms.
In a directional selection there is only one trait and it is always that dominant trait that dictates body of the population. The best example to show this is that in the area that giraffes live in the vegetation is in the higher trees so the giraffe has adapted a neck that is long enough to reach the vegetation that is crucial to its survival. It’s a lot like being graded on a curve where Directional selection is only going to have one peak to its curve but disruptive would have two peaks. 1. Many pathogenic bacteria
Dominate mice who won fights and gained priority to access food and supplies showed evidence of being predominately more social, thus these
In the article “Evolution as Fact and Theory” Stephen Jay Gould who is one of the leading theorists in evolution argues that the debate between evolutionists and creationists is pointless since creationists’ arguments lack support and evidence. Gould writes that creationists’ main argument is that evolution is only a theory. However, Gould states that it is not only a theory but also a fact. He suggests that humans evolved from apelike— whether or not is happened by Darwin’s mechanism. What Gould is saying is that there is more than enough evidence to support the theory of evolution and the question that scientists are trying to answer is how exactly all living organisms are linked.
Do dreams have an evolutionary function? In this essay I will discuss Flanagan’s reasons for believing consciousness is an adaptation, I also will discuss why sleep is an adaptation and his stance on dreams being spandrels. And I will end with my opinion on why dreams may or may not be significant based on Flanagan’s theory and the treat simulation theory. I will also discuss the reasons why or why not dreams may have an evolutionary function.
In short, Darwin's theory of natural selection is that individuals with traits (genetic or otherwise) advantageous to their environment are more likely to survive and reproduce than others (of the same species, but without those advantageous traits). For example, a colony of rabbits is born in the woods. Some rabbits are tan-ish grey, while others are albino. Furthermore, while some rabbits have stronger legs, others are weak. Due to not blending in well with their surroundings, and not being able to run or kick as fast, some of these rabbits will have a lower chance of survival than their siblings.
I took my first AP class during my sophomore year. The class was AP Biology which was incredibly difficult, but with hard work I was able to succeed. The year after I decided to enroll in AP Chemistry. I thought that if I was able to succeed in Biology, I would have no problem succeeding in Chemistry. The first week of junior year arrived along with AP Chemistry.
"Every year more than 6 million lost, abandoned, or unwanted dogs and cats enter animal shelters"(Campanion Animal Overpopulation). This is why shelters are overcrowded. Shelters do not have the funding they need to keep so many animals healthy and adoptable. The No Kill Advocacy thinks that shelters do not want to help get their animals adopted out(No Kill Equation). Most shelters go above and beyond to try to find these animals good homes.
There are 3 types of polar bears: ones with thick coats, ones with thin coats and ones with medium coats. It is fall, soon to be winter. The temperatures are dropping rapidly and the bears must be kept warm, or they will freeze to death. Many of the bears have had 2 cubs each but due to the extreme temperatures, many mothers only have one cub left. a. What bear will natural selection select AGAINST?
Directional selection means that natural selection is in favor of one extreme or another. An example of directional selection is that there is a green and red types of beetles. The predator in the area only likes green ones, this is a disadvantage for the green beetles. Another example, there are white rats and black rats. The predator, which is an eagle, the rats hide in mud; The eagle is able to see the white rats and eats them, that is an advantage to brown rats.
The text that I found most interesting was The End of the Wild because the author Stephen M. Meyer manages in 97 small pages to offer an extremely powerful argument and dissection of the biodiversity predicament us humans are in. He paints a grim picture of the loss of the wilderness. Calls the wilderness “a landscape where the handprint of humanity is invisible” and “where the forces of natural selection smother those of human selection.” (8) Meyer sees the effects of human activity and intervention leading to a three types of life; comprised of weedy species, relic species, and ghost species. Weedy species, such as dandelions, coyotes, and white-tailed deer, thrive in environments that have been settled and have become dominated by humans.
As a biology student, evolution was one of the first topics covered in my introductory biology classes at ASU. When I have been taught evolution it almost always begins with a tale about Darwin, the Galapagos Islands, and those magical finches. Using Darwin’s discovery, terms such as mutation, genetic drift, and adaptation were introduced to me. The basic consensus of evolution that I have gained from these biology courses is that species adapt to their environment in ways that allows them to survive more successfully. This ability to survive more effectively, allows these species to procreate more.
Imagine what would happen if we lived in a world where water was kept 8 feet off the ground and there was absolutely no way you could get it if you weren’t tall enough. Most likely, the short people would die off. The taller ones would multiply, and before long, instead of a population of people of all sizes, you would have a population of only tall people. Living things that are best suited, or adapted, to their environment survive and multiply. Those that are not, are unable to survive.
The documentary Darwin’s Nightmare focuses on the issues and exploitation which plagued underdeveloped African countries but mainly focuses on Tanzania by showing how the people of the developed countries utilize, take control and gain the wealth of the poorer countries. The documentary makes it perfectly clear about what hardships the Tanzanian people face daily such as prostitution, hunger, homelessness, corruption like the illegal weapons that are being traded in Lake Victoria, and pollution. On the other hand Paul Collier gives an insight on why the poorest countries fail and what can be done about it. There is also Jeffery Sachs who explains his eight reasons for economic failure. Undeveloped countries like Tanzania facing the stagnation
Many people believe that if you cannot see something, that something does not exist. By something I mean God. Those who discard the thought of a Creator then turn to science to provide evidence for our origins. The theory science puts forth is called evolution. What is evolution?
