Essay about Evidence for Evolution

The habitat will not be able to support an unlimited population, which means not all individuals will get to reproduce. For instance, the blue beetles will stand out, and get eaten by predators, limiting the amount of blue beetles

According to the article Brian J mentioned that “during the course of evolution, traits that no longer confer a reproductive advantage do not disappear in the population unless they are reproductively disadvantageous” (37). This is because favorable traits are inherited and passed on to the next generation. Also individual who possess favorable radiations or traits have an advantage over those that don’t. Connecting back to what we talked about in class, Jean-Baptiste lamarck first attempt to explain the evolutionary process. He suggested if a dynamic relationship between species and the environment changes then an animal would also change.

Natural selection involves the adaptation of a species to better survive in their designated environment. When organisms reproduce, they pass down their DNA to their offspring. For example, a child that is tall is the result of their parent being tall as well. Parents pass down traits to their children. When it comes to survival, some organisms are better at it than others based on the traits that they have acquired. Some organisms can camouflage from predators while members of the same species do not obtain that same trait. With that in mind, the ones that can camouflage will most likely survive in certain environments and they will then pass on that trait when they reproduce. Since these traits are advantageous, they are passed on to more and more offspring through time and it will eventually overcome any original traits that species first started out with. It’s kind of like the current state of sexual misconduct in Hollywood. We have our directors, actors, agents, and so forth. However, as time goes on, some do not survive in the business based on their inherently evil traits and they get weeded out just like some species in the wild. As generations pass, these organisms have then adapted to fit the environment and better survive based on their inherited traits.

Evolution is a real thing that happened and is still happening today, there is so much evidence to prove it. We have the fossil record, we know how natural selection works and how and why it happens, and we know how artificial selection works and that we use it all of the time today. There is just too much evidence to call evolution just a theory.

The theory of evolution postulates that all life evolved from other preexisting life and the differences are attributable to changes from generation to generation (Ayala, 2005). Evidence supporting this theory comes from all branches of biology. Below is a list of five types of evidence supporting this theory.

Natural selection is nature’s way of revising and changing to aid in the constant pursuit of survival. And genetics are the key to finding favorable traits in nature. The more diverse a population, the more likely the species will continue on in the future. The way this works is not very complex. Those that have traits better suited for the environment, will survive and pass on those genes. The genes they pass on, will change the population and make it better suited for the ever changing environment. It’s not always the biggest and strongest that pass on their genes however. Since genetic variations are completely random, some organisms get favorable variations and survive while some get less favorable variations and die.

The concept of natural selection suggests that individuals/species with useful adaptations have higher chance of survival than those who cannot adjust to environmental change. It increases variability and produces favorable characteristics in later generations to adapt to life changes. In the end, individuals with natural selection characteristics evolves and withstands natural threats much better than those who don’t. Species that are unable to change to fit in new environment would eventually go extinct.

Evolution is a change in the genetic makeup of a population over time, with natural selection its major driving mechanism. Darwin’s theory, which is supported by evidence from many scientific disciplines, states that inheritable variations occur in individuals in a population. Due to competition for limited resources, individuals with more favorable variations or phenotypes are more likely to survive and produce more offspring, thus passing traits to future generations. In addition to the process of natural selection, naturally occurring catastrophic and human induced events as well as random environmental changes can result in alteration in the gene pools of populations. Small populations are especially sensitive to these forces. A diverse

Natural selection states that those organisms that have characteristics that best suit to the environment will survive, reproduce and pass some characteristics to their offspring. In any population that reproduces sexually, there are large variations of inheritable characteristics. If various groups of the same species become isolated from each other, the environments in which the groups are isolated may result into different characteristics to suit that particular

However the selection can favor traits to help organisms. The possibility of finding a mate with traits. A sexual selection can become male adaptive. Mating with a female such as individuals by choice of ensuring the decendent will have set optimal genotype for survival.

Evolution is how a species changes over time due to natural selection. There are many pieces of evidence proving evolution and that we all came from a common descendant. One piece of evidence of evolution is fossil records. Fossil records are remains of live fossilized in rocks, wood, bones, or frozen in ice or trapped in plant resin. Fossil records show evidence of evolution because some fossil recrods look reallt similar to some animals alive today, which means that they slighly evolved to survive in the new enviroments that mother nature introduced them.

1) Natural selection is when the species survival and their reproduction determine the genetic traits compared to artificial selection that is when humans can choose their traits that will show up in their future generations. Although humans intensify and inhibit organism’s genetic traits through select ancestry, nature concerns itself with characteristics that concede improvements to a species' ability to mate and survive. when Humans select organisms to breed for selective traits, some times they select members to improve their traits. But sometimes this inbreeding can cause an expression of hazardous genes.

In order to create the next generation of a population, survival is not enough. Individuals must also reproduce. Around 90% of species reproduce sexually, which means male and female of a specie match. Darwin defined this as sexual selection.

The theory of evolution states that organisms change over time.The changes the organism's have help them better adapt to their environment. These changes will help them survive and have more offspring in their environment. Charles Darwin came up with theory of evolution. The theory of evolution is supported by five things, or evidence.

If these traits that it possesses that made it different were useful than that creature may reproduce more than normal. Of course in Darwin’s day DNA had not been discovered but it was known that traits were passed to offspring. Natural selection is when the organisms with good traits survive the trials of nature. Artificial selection is what breeders do, the cow that gives more milk, or the plant that produces larger fruit are selected to be reproduced. Encyclopedia Encarta defines natural selection as “the process by which environmental effects lead to varying degrees of reproductive success among individuals of a population of organisms with different hereditary characters, or traits. The characters that inhibit reproductive success decrease in frequency from generation to generation. The resulting increase in the proportion of reproductively successful individuals usually enhances the adaptation of the population to its environment”