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Natural Selection

Natural selection is a function of evolution. It involves biological traits becoming more or less prominent depending on the needs and environment of a specific species.

666 Questions

What is the natural selection of the Florida panther?

Florida panthers, like all other life, are entirely formed by natural selection. There's not a single part of them that hasn't been touched, over the course of their evolutionary history, reaching back to the first cellular lifeforms, by natural selection: from their overall shape and colour to the metabolic pathways in their cells.

Although these panthers are entirely formed by natural selection, there's not any single feature unique to the florida panther that could easily be linked to a specific feature of their habitat.

What are the two types of challenges in the jury selection process?

The two types of challenges in the jury selection process are challenges for cause and peremptory challenges. Challenges for cause are based on specific reasons why a juror may be biased or unable to be impartial. Peremptory challenges allow attorneys to dismiss a certain number of potential jurors without stating a reason.

Will natural selection cause the allele's to disappear?

Natural selection can lead to the decrease or elimination of certain alleles in a population if they are less advantageous or detrimental to survival and reproduction. However, some alleles may persist in a population at low frequencies or in hidden forms due to factors like genetic drift or heterozygote advantage.

What natural selection traits have lions developed?

Lions have developed traits such as sharp claws and powerful jaws for hunting, exceptional speed and agility for chasing down prey, and social behavior for hunting in groups. They also exhibit keen senses of sight, smell, and hearing to detect and capture prey in their environment.

How did the idea of evolution become the modern theory of Darwinism?

The idea of evolution existed before Charles Darwin, but his work on natural selection and adaptation provided a comprehensive explanation for how it occurs. Darwin's "On the Origin of Species" presented evidence and a mechanism for how species change over time, leading to the development of the modern theory of evolution. Subsequent research and discoveries have only further supported and expanded on Darwin's original ideas.

Who said Darwinism was used to justify European imperialism in Asia and Africa What idea was used?

In the 1800�s, Social Darwinists took Darwin�s theory of natural selection and used it to justify imperialism by believing the most ñsocially fitî white races had the divine right to dominate the ñlesser racesî. This belief allowed colonialists to believe that it was right that they should seize and enjoy riches while the inferior races languished in poverty.

What are defactors that affect the process of natural selection?

Some factors that can affect the process of natural selection include mutation rate, genetic diversity within a population, environmental changes, competition for resources, and presence of predators. These factors can influence which traits are favored or selected for in a population over time.

Why is akiba drumer chosen for selection?

Akiba Drumer is chosen for selection during the Holocaust because he is deemed unfit for work due to his declining physical condition, making him a liability for the Nazis. This often led to Drumer, along with others who were considered weak or sick, being selected for extermination in gas chambers.

What are natural selection and the term survival of the fittest?

because all living organisms are born with genes that make them unique. They are passed down by our parents. when a disease or predator comes into an environment, only the creatures with the gene to survive or live through the 'disaster or problem.' this is usually called survival of the fittest due to only the best or 'fittest' are able to survive. Then the creature that survived has off spring that in turn get that gene and allows for the offspring to survive as well. this alters the species and usually considered a mutation. Like humans used to have webbed feet, but the first human or ape that lost the webbed feet was able to survive and thus continued the mutation until today it is accepted as normal versus our original webbed feet. Because those best equipped to "survive" prosper. They were the "most fit" to endure and prosper in their particular environment. It is described as the survival of the fittest is because the more an animal is fit for his or her environment the better chances it has of survival. If the animal is fit it will be able to catch his or her prey and if not he or she will die of starvation.

How did humans evolve through natural selection?

  • Modern homo sapiens developed from a species known as homo erectus; erectus was the first hominid to walk upright hence the Latin name. The first appearance of sapiens is around 200 thousand years ago.
  • Homo erectus developed from a species named homo habilis, the first hominid to be using tools. The first appearance of erectus was around 1.8 million years ago (or 1.25 mya if you follow the idea that erectus developed from the very similar ergaster, with ergaster being the step between habilis and erectus).
  • Homo habilis is believed to have developed from Kenyanthropus platyops. Habilis first appeared between 2.5 and 2 million years ago.
  • Platyops is believed by some to be either a member-species of the genus Australopithecus, or to be a misidentification of another extant species afarensis within that genus. Both of these would explain the heritage it has; the specimens found were given their own genus and species in the interim. Kenyanthropus platyops first appeared around 3.5 million years ago.

At this point, the exactness of the human evolutionary tree is disputed; several specimens have been found, the characteristics and times of which complicate the tree somewhat. However, there are at most two or three further ancestors before we reach the most recent common ancestor of chimpanzees and humans 5 to 7 million years ago - it is some interesting research to go back further, and shall be left to the reader if they are interested.

What are the 4 stages of natural selection and explain each?

The four stages of natural selection are: variation, heritability, differential reproduction, and adaptation. Variation refers to differences in traits within a population. Heritability involves the passing on of these traits to offspring. Differential reproduction occurs when individuals with certain traits are more successful at reproducing. Adaptation is the process by which these advantageous traits become more common in a population over time.

What is boltzmann selection?

Boltzmann selection is a method for selecting options based on their probabilities derived from a Boltzmann distribution. It assigns a probability to each option proportional to its energy or fitness level, allowing for a probabilistic and gradual selection process. This method is commonly used in optimization algorithms and evolutionary computing.

Why is selective breeding not caused by natural selection?

Selective breeding is not caused by natural selection because it is controlled by humans, who choose which organisms to breed based on specific traits they want to pass on. In natural selection, the environment determines which traits are advantageous for survival and reproduction, leading to the evolution of species over time. Selective breeding, on the other hand, is a human-driven process aimed at producing desired characteristics in organisms for human benefit.

Why does cloning contradict the principles of natural selection?

Cloning contradicts natural selection because it creates identical copies of organisms, rather than allowing for genetic diversity and variation necessary for species to evolve and adapt to changing environments. Natural selection relies on genetic variation for the process of evolution to occur, which is limited in cloned organisms.

Do people act impulsively in their natural surroundings?

People may act impulsively in natural surroundings due to the thrill of being in an unfamiliar environment, which can lead to risky decisions. However, some individuals may demonstrate cautious behavior in these settings to ensure their safety and well-being. Overall, the level of impulsivity varies among individuals, depending on their personality traits and past experiences.

Which fish will natural selection favor?

That depends entirely on their physiology and the circumstances. If you have a fish that feeds mostly by harvesting the floor, for instance, natural selection might favour fish with stalks around the mouth for scanning the bottom and eyes on top to keep watch for predators.

What category does natural selection fall into?

Natural selection falls into the category of evolutionary mechanisms. It is a process in which individuals with advantageous traits are more likely to survive and reproduce, leading to the gradual accumulation of those traits in a population over time.

What are the factors to be considered during material selection?

Factors to consider during material selection include mechanical properties (strength, stiffness, toughness), chemical compatibility, cost, availability, environmental impact, and manufacturing process compatibility. It is also important to consider the intended application, operating conditions, and desired lifespan of the product when selecting materials.

What is an example of a natural selection occurring in an ecosystem?

Lets use the jungle as an example. A female orangutan has two children. One of the children is strong and smart and very agile. The other however unfortunately is small, weak, and has limited mobility. There is only room for one in the tree she resides in. As a result, the smaller orangutan dies. This is an example of natural selection because in this scenario the fittest of the breed survived to live another day. And by living another day they will eventually pass on their stronger genetics in the family genepool by reproduction creating even stronger offspring than the parents. The weaker ones die and therefore do not become part of the genepool creating a less vulnerable species. Overtime the adaptation gained from this process will lead to greater chances of survival.

What is an elephants natural selection?

Natural selection in elephants refers to the process by which certain traits or characteristics that are beneficial for survival and reproduction are favored and passed on to future generations. In the case of elephants, traits such as large ears for thermoregulation, long trunks for gathering food and water, and strong social bonds for protection are examples of adaptations shaped by natural selection.

Is behavior shaped through natural selection?

Yes, behavior can be shaped through natural selection. Traits that increase an individual's chances of survival and reproduction are more likely to be passed on to future generations, including behaviors that contribute to these outcomes. Over time, this can result in the evolution of certain behavioral patterns that enhance an organism's fitness in its environment.

What makes natural selection happen?

Natural selection happens when individuals with traits that are better adapted to their environment are more likely to survive and reproduce, passing those advantageous traits on to their offspring. Over time, this process leads to the accumulation of beneficial traits in a population, increasing its fitness and ultimately driving the evolution of a species.

How does natural selection and evolution cause speciation?

Natural selection leads to changes in a population over time as individuals with advantageous traits survive and reproduce, passing those traits to their offspring. If these changes accumulate and lead to reproductive isolation between populations, new species can form through a process called speciation. This can occur through geographical isolation, reproductive isolation, or genetic mutations that create barriers to interbreeding.

What does natural selection directly work on?

Natural selection directly works on the heritable traits of organisms that impact their ability to survive and reproduce in a given environment. Organisms with traits that enhance their survival and reproductive success are more likely to pass those traits on to the next generation.

What are the limitations of Darwinism?

Some limitations of Darwinism include the inability to explain all aspects of evolution, such as the origin of life, the role of genetic drift and other mechanisms in evolution, and the emergence of complex traits. Additionally, Darwinism does not account for all genetic and environmental factors that influence evolution and adaptation in organisms.