Species Evolution Lab Report

Majority of mice in New Mexico’s Valley of Fire have dark color. The population increase of dark-colored mice in Valley of Fire happened because of natural selection. Mice that do not suit the environment, which are light-colored mice, cannot survive in Valley of Fire because they are easily noticed on dark soil by the predators. On the other hand, dark-colored mice can hide easily on dark soil, which made them survive. Whereas the mice near the desert are mutated, those near the lava are not mutated. Each mouse from different lava found to have a different gene. Whereas the mice near the desert’s color change was from a random mutation, that of the mice near the lavas was not random. Because, each dark-colored mouse from two different lavas

• Be able to use the terms variation, adaptation, natural selection, and evolution as they apply to this and

1. Did the construction of the phylogenetic tree based on the 14 living Caminalcules change the way you would group Caminalcules species in your taxonomic classification (chart)? What does this suggest about classification based on strictly of similarity versus evolutionary relationship?

The purpose of this lab is to better understand the process of natural selection and its effects on a population by conducting a stimulation. The stimulation consist of predators (students with either a spoon, fork or a knife) and prey (different types of beans). Furthermore, students will be able to determine how phenotype (bean color and utensil used by the predators) influences natural selection. Students will also demonstrate their quantitative skills by determining the predator survival and reproduction, bean survival and reproduction, and by calculating the total percent of the population. Additionally, students will be able to identify the occurrence of evolution by natural selection after the end of generation three. Moreover, students

There are many things in our world that change over time. The seasons change from summer to fall, the leaves on trees change from green to red and orange, the weather goes from hot to cold. When everything starts to change, people start wearing more layers of clothes and instead of going out with friends to get ice cream and head down to the beach, they often head down to Starbucks to grab a hot chocolate to go ice skating. People adapt to the environment around them but not on a molecular level like the animals around the world who cannot simply put on clothes and buy hot chocolate or buy ice cream and head to the beach. Animals adapt to their living conditions to prolong their lifespan. This was first introduced as the theory of evolution

the evolution from a fertilized egg to a developed organism depends on the interpretation of distinct genes at distinct points.In inclusion, gene expression can occur in distinct sections of the body at different times during development. As the fertilized egg starts to break down, different genes are either turned on or off. The awakening of specific genes is the most crucial step in cell differentiation. As the tiger grows and develops, different genes are either turned on or off in the tiger’s assorted cells. This regulation is a key part of development and

Direct observation is the final evidence for evolution. By observing a species in their natural habitat, you can see how they adapt. For example, the peppered moths. Originally they were white, with black and grey specks. As the industrial revolution began, the trees they laid on for protection, started to turn black. The moths then were being eaten by birds. The moths adapted to their environment, and slowly became black with grey specks.

Since the Earth’s birth, this is about 4.6 billions years ago animals have faced massive obstacles in sustaining life due to unforgiving environmental conditions. As a result, only few animals have survived while the other 99.9% have became extinct (Deep Time 2001). The mechanism that allowed the 0.1% to outlive the unfortunate is evolution. In a broader picture, it can be described as a change in a population’s appearance over generations. More specifically, evolution it is a change in the genetic makeup of a population over time that is a consequence of mutations, crossing over, or independent assortment. Moreover, this change brings about a positive impact in the population as seen in Finches, which evolved to have stronger beaks in response to harder foods (Yoon 2007). The spread of stronger beaked finches was a product of natural selection; a process by which better-adapted animals survive to produce offspring, while other animals lacking certain advantages will not

According to Charles Darwin, the theory of Natural Selection proposes that those organisms which are best adapted to their environment have a greater chance of surviving and reproducing. Darwin’s theory includes different factors starting with overproduction. Essentially, organisms with favored traits have higher chance of reproduction and will ultimately reproduce more offspring. Moreover, the more variation a species possess, the more likely it will survive as the environment is constantly changing. Which leads to the next factor which is competition; that is, species will compete with each other for food and water. Conclusively, Evolution takes place when the superior traits increase in a species population over many generations while inferior

Evolution is the process by which an organism branches off from an ancestor and changes due to modifications caused by natural selection, mutation, genetic drift, and gene flow. In the case of the squirrel population a dominant long tooth gene came about. Depending on whether the long tooth trait is favored in the environment will determine what happens to the litter of squirrels. Suppose the gene is favored, this would give the litter of squirrels an advantage over the others when it came to either getting more mates or having more success on getting different types of food. This would eventually change the allelic frequencies and over generations make the long tooth gene an advantageous trait. However, if having long teeth is a disadvantage

macroevolution is speciation through changing alleles. Competition often leads to evolution by natural selection. This is because organisms compete for resources, and mutations that allow the organism to compete better for resources will be passed on to offspring so that future generations can continue to thrive. The requirements for evolution to occur are variation within the population of organisms, inheritance of traits, a high rate of population growth, and differential survival and reproduction. Variation and inheritance of traits are needed so that many mutations can be experienced by the organism, and so the beneficial mutations can be passed on to offspring. A high rate of population growth is needed because the more reproduction means the more passing on of mutations, which leads to a test of how different mutations are beneficial or detrimental to the organism. Differential survival and reproduction is important because it determines which organisms will survive and reproduce by how adapted to their environment they are. This leads to a transfer of useful mutations and traits, rather than non-benefical ones. While mutations and adaptations are necessary to the survival of a species,

SC.5.L15 asserts that Earth is a home to a great diversity of living things whose survival depends on the changes in the environment. However, individuals of the same kind usually differ in characteristics, and such differences give individuals an advantage to survive and reproduce in certain environments (CPALMS, 2015).

Biodiversity presents occurrence of variety of species and their natural community in which they live. By the definition it is “The degree of variation of life forms within a given species, ecosystem, biome, or an entire planet. It is a measure of the health of ecosystems and is in part a function of climate.” (Rutherford) Ecosystem is on the other hand, “ community and its abiotic environment”( Rutherford). Biodiversity exists in every ecosystem, weather it is big one, or just ecosystem of one garden, it has the same importance because without it nature loses its ability to perform major functions needed for life on Earth, as it is oxygen production. Trough this investigation, two different ecosystems will be explored and

The evolutional theory has many sources of proof. Starting with DNA Sequences. How scientists can infer that animal are have a common ancestor by DNA sequences. In DNA sequences scientists look at the patterns and common genes that appear in animals that they have in common to see if far down the road they had a common ancestor. A common ancestor can also lead to something like a Homologous structure.

The ability to adapt in nature determines whether a species will survive throughout time or not. Adaptability is something humans have become very good at. It is not just the environment we must be good at adapting to if we want to live life to its fullest, but we must be good at adapting to situations. A way to show this would be something everyone who has gone through school is familiar with, test taking. A high school student is taking algebra, U.S. history, and American Literature, and he has a test to take in all three classes. His study habits adapt to what each class will require. The student is very good at algebra, so he does not need to study for that test. He is not very good at