The Rhagoletis Pomonella Fruit Fly

Evolution is the way of understanding of a complex problem requires, which a set of terms based on the situation. The word evolution should surround the biological concept that is founded on the scientific studies. These studies can come from many disciplines that are not related in any way really. Evolution can also be used in other ways such as, historical, sociological, and philosophical. Inthe scientific way, evolution means changing dramatically or have a

Evolution: the process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.

In this experiment, vestigial flies as well as wild type flies were used to create some diversity as well as test one of our hypotheses. Our hypotheses are as follows; 1) The wild type flies will have a greater relative fitness compared to the vestigial flies based on only sexual selection.  The wild type has a relative fitness of 1 since it has fully functional wings.  Vestigial Winged flies are not as sexually appealing since their wings are not functional and the wing movement is a vital part of their mating ritual.  2) The vestigial fly will have a greater relative fitness when considering both sexual and natural selection. With the presence of

Evolution is when an organism or something evolves over an extended period. An example of evolution would be humans because it took a long time for early humans to evolve into modern humans.

Natural selection plays an important role on the creation of new species, as well as allopatric speciation and sympatric speciation. Each of which plays a major

Natural selection is an important component of evolution. Natural selection occurs when some members of a population are better fit for survival and reproduction than the others in that population (Phelan 284-85, 2011). The environment in which organisms live plays a part in natural selection as well. Depending on the conditions of the environment, the organisms may pass down selected traits to their offspring. These selected traits will allow for the next generation to better adapt and survive longer. One example of evolution that has occurred in the past ten years is that of hypolimnas bolina, or the blue moon butterfly. The blue moon butterfly evolved through the process of natural selection in order to survive. The male blue moon

What is evolution? Evolution in modern terms is fairly easy to understand. Evolution is the theory that life on earth began with a single celled organism that lived more that 3.5 billion years ago that slowly evolved into

Transitional species are species that show the intermediate states between an ancestral form and the descendants. Transitional species have similar features of both the ancestral form and the descended form. For example a tiktaalik are considered the transitional species of fish. With all things considered I believe that this is true. For example a embryo is a transitional “stage” between a zygote and a fetus. They have similar features but are still adapting, growing, and changing. This is how transitional species supports the less extreme version of modern

Evolution is the process by which a population shows heritable genetic changes over a period of time. Hypothetically, a unique bird adapted to the rainforest and passed on those traits to the next generation. This bird lacks feathers, swims, and uses its extra sharp beak in order to survive in a rainy, humid, and tropical environment with other animals.

Examples of evolution and adaptation are present in every organism on Earth. Organisms adapt and change according to their surroundings. As their surroundings change, they change, or they die. These are the basic concepts of evolution. Organisms will adapt to survive and thrive, or they will die out. The species alive today as a result have evolved and have undergone much change from their ancestors. Invertebrate species are just some examples of this in action, but if one was to look at the specific species of invertebrates and analyze their adaptations and traits, the evidence of evolution would be quite surprising. An astounding example of this in action is a little insect known as the honey bee.

Evolution is the theory that various kinds of animals and plants have come from different species that existed in the past. Merriam webster dictionary says “evolution is a process of change in a certain direction”. Teachers friendly guide says that “We study evolution to know more about the world we live in today.” Evolution summed up is change.

The four processes for evolutionary change are mutation, migration, genetic drift, and natural selection. Mutation is when organisms create offspring that have drastically different genes than themselves. Migration occurs when an organism with a certain trait moves into a population, and brings its genes into that group. Then that trait might become common in the new group. Next, genetic drift is when the genes of different generations differ due to a random event. Finally, there is natural selection. This is when genes and traits of organisms are selected by nature to get passed on. Basically, a better trait will get chosen by nature to continue, and will become common among the species.

Researchers have analyzed the genome of two subspecies of the Heliconius butterfly- having only recently diverged into subspecies- in order to locate the genetic differences that are the critical points for speciation. These two subspecies are still able to interbreed and are located in the similar ecological habitats; therefore these butterflies will be able to experience a small amount of genetic exchange. This ability of regular exchange causes the unimportant variants in the process of speciation to become silent- the researchers found that this allowed them to locate the main genetic areas that natural selection has influenced. In the research they determined that the two Heliconius butterfly species genome had only 12 differing regions and the rest of the genome was nearly identical. Of the 12 differences eight of these they found to code for the wing color patterning, a key trait as it affects mating and avoiding predators in their perspective environments, the other four were still yet undetermined. In a second test they compared the two previous genomes to a third Heliconius species. The third species was farther removed on the evolutionary time scale but was still closely related to the previous groups. The comparison showed the genomes to have hundreds of differences; they concluded that once the initial genetic changes

Evolution refers to change over time as species modifies and separate to produce several offspring species.

If you have taken a high school biology course, you may have been exposed to the classic example of Darwinian evolution involving industrial melanism in the peppered moth Biston betularia. Melanism, which is the development of dark colored pigment, was observed in the peppered moth Biston betularia shortly after the industrial revolution. During the industrial revolution, pollutants killed the lichen on trees in many parts of Britain leaving them exposed to soot.1 This loss of lichen darkened the normally light trees, and because of this environmental change, the survival rates of two different peppered moth morphs were altered. After the soot had appeared, the melanic ‘carbonaria’ morph was believed to have a higher survival rate than the non-melanic ‘typica’ because birds would not be able to locate them on the darker trees as easily.2 In this system, birds are agents of selection because they determine which morph of moth survives at a higher rate. Henry Kettlewell produced evidence to support this in his mid-twentieth century experiment where he conducted cage experiments to determine if melanism in moths played a role in predation by birds.6 Kettlewell found that moths that did not have coloration that matched their resting tree were more susceptible to being eaten.3 Since then, predation of the peppered moth by birds has been a classic example used to teach evolution.