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Evolution

The scientific theory according to which populations change gradually through a process of natural selection.

500 Questions

The scientific study of heredity?

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Asked by Wiki User

The scientific study of heredity is called genetics. It involves understanding how traits are passed down from one generation to the next, and how variations in genes can result in different characteristics in individuals. Genetics encompasses topics such as inheritance patterns, gene expression, and the role of DNA in transmitting genetic information.

What does the principle of dominance state?

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Asked by Wiki User

Basically, it states there are two forms of a gene called alleles, heterozygous in this case, and one allele masks the expression of the other allele. This is simplified, as it can get complex with co-dominance and partial dominance.

Is Evolution taught in Kansas?

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Asked by Wiki User

Yes, evolution is taught in Kansas public schools as part of the state science standards. However, there have been controversies in the past surrounding the teaching of evolution and creationism in schools.

Why does convergent evolution happen?

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Asked by Wiki User

Convergent evolution happens when unrelated species develop similar traits due to similar environmental pressures. These similar traits may provide a survival advantage in the given environment, leading to their emergence in different organisms through independent evolutionary pathways.

What is nucleus uses for?

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Asked by Wiki User

The nucleus in a cell is responsible for storing genetic material, like DNA, and controlling the activities of the cell by regulating gene expression. It serves as the command center of the cell, directing cellular activities and ensuring proper functioning.

Charles Darwin theory?

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Asked by Wiki User

Charles Darwin's theory of evolution by natural selection proposes that species change over time through a process of genetic variation, competition for resources, and survival of the fittest. This theory explains how organisms adapt to their environment and how new species can arise from common ancestors. Darwin's work revolutionized our understanding of the diversity of life on Earth.

What Theories are now rejected?

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Asked by Wiki User

Phrenology, which suggests that personality traits can be determined by the shape of someone's skull, is now rejected by the scientific community. The theory of spontaneous generation, which proposed that life could arise from non-living matter, has also been thoroughly debunked. Additionally, the geocentric model of the universe, which placed Earth at the center with all celestial bodies orbiting it, has been replaced by the heliocentric model.

How did old world monkeys evolve from ancestral primates?

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Asked by Wiki User

Old World monkeys are believed to have evolved from ancient primates that lived in Africa and Asia around 25 million years ago. Through a process of adaptation to their changing environments, these early primates eventually gave rise to the diverse group of monkeys we see today. Key evolutionary developments, such as the development of a more complex brain and improved mobility, played a crucial role in the evolution of Old World monkeys.

Approximately how long do scientists think chemical evolution took?

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Asked by Wiki User

Scientists estimate that chemical evolution, the process by which life emerged from prebiotic molecules, likely took place over millions to billions of years on early Earth. The exact timing is difficult to pinpoint due to limited geological evidence, but it is believed to have occurred gradually over a long timescale.

What is the naturalistic theory?

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Asked by Wiki User

The naturalistic theory is a philosophical approach that explains phenomena based on natural causes and laws, without resorting to supernatural explanations. It assumes that the natural world can be understood and explained through scientific inquiry and observation. This perspective rejects the existence of gods, spirits, or any other supernatural entities as explanatory principles for phenomena in the world.

What is an example of divergent evolution?

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Asked by Wiki User

An example of divergent evolution is the evolution of Darwin's finches on the Galápagos Islands. The finches have evolved different beak shapes and sizes to adapt to different types of food available on each island, leading to the formation of multiple species from a common ancestor.

Provide evidences relating to some policy goals and initiatives of VNAT?

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Asked by Reddvil

  1. In Vietnam, the Vietnam National Administration of Tourism (VNAT) has implemented a policy goal to promote sustainable tourism practices. This is evidenced by their collaboration with international organizations to develop eco-friendly tourism initiatives and programs to preserve the country's natural and cultural heritage.

  2. VNAT has also prioritized the development of tourism infrastructure and services to enhance visitor experiences. Evidence of this can be seen in the government's investment in improving transportation networks, accommodations, and attractions to support the growth of the tourism industry and attract more visitors to Vietnam.

  3. Additionally, VNAT has launched campaigns to enhance the country's destination branding and marketing strategies to position Vietnam as a premier travel destination. This is demonstrated through their efforts to participate in international tourism fairs, promotional activities, and digital marketing campaigns to attract a diverse range of tourists from around the world.

What does spontaneous generation mean?

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Asked by Wiki User

Note

Note that spontaneous generation and abiogenesis are distinct and separate concepts. For information on abiogenesis, see links below.

Answer

Spontaneous generation is the obsolete idea that complex, modern organisms can form overnight from non-living things, hypothesized by Aristotle. For example, people used to think that maggots came from raw meat.

Answer

Spontaneous Generation was the theory that complex, modern organisms formed overnight from non-living things. It was disproved by many people, some including Francesco Redi (1668) and Lazzaro Spallanzani (1768). Redi disproved Spontaneous Generation by putting some decaying meat in 2 jars, then covered one of them. When fly maggots appeared in only the uncovered jar, he had enough evidence to prove that the flies came from eggs and not the decaying meat because if the flies came from the meat, there would be flies in both jars. Spallanzani disproved Spontaneous Generation by putting heated broth in 2 sealed flasks, and covered on of them, somewhat like what Redi did, but with different materials. He concluded that Spontaneous Generation was illogical because the uncovered flask had microorganisms, and the sealed one did not.

What time and place did Darwin's theory occur?

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Asked by Wiki User

Charles Darwin's theory of evolution, outlined in his book "On the Origin of Species," was published in 1859 in England during the Victorian era.

What does evolution means?

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Asked by Wiki User

It is the reason humans and all of life on Earth exist. It is the most powerful idea ever to come into the human mind. Charles Darwin discovered the reason why we exist and in the process answered questions of the sort "What is the meaning of life?"

Why is evolution important in biology?

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Asked by Wiki User

Evolution is important in biology because it explains the unity and diversity of life on Earth. It helps us understand how species have adapted to their environments over time. By studying evolution, we can also make predictions about how organisms may change in response to environmental pressures.

Why do humans get into groups to kill other groups of humans?

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Asked by IanRodger

Humans may form groups to gain power, resources, or protect their interests, which can sometimes lead to conflicts with other groups. Additionally, factors such as fear, prejudice, competition, and desire for control can also play a role in group violence towards others.

What advantages of being multicellular have?

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Asked by Wiki User

A multi-cellular organism often has different kinds of cells which are specialized for carrying out certain tasks. Additionally, being multi-cellular increases the capabilities of an organism- a multi-cellular can form organs such as a brain, heart, lungs etc. making a more complex living thing

What is the second law of Thermodynamic productions?

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Asked by Wiki User

The second law of thermodynamics states that the total entropy of an isolated system will never decrease over time. This law leads to the concept of energy dispersal and the irreversibility of natural processes.

Where do scientists believe chemical evolution occured?

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Asked by Wiki User

Scientists believe that chemical evolution occurred on early Earth, likely in locations such as hydrothermal vents in the deep sea or shallow pools of water on land. These environments provided the necessary conditions for simple organic molecules to form and evolve into more complex compounds, eventually leading to the origin of life.

What is Oparin Chemical evolution theory Urey-Miller excerpts?

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Asked by Wiki User

Oparin's theory proposes that organic molecules could have formed on early Earth through chemical reactions in a primordial soup. The Urey-Miller experiment demonstrated this by recreating the conditions of early Earth and producing amino acids, the building blocks of life. Overall, these theories suggest that life could have emerged from simple organic compounds through a series of chemical reactions over time.

What are two of the driving forces behind the process of natural selection?

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Asked by Wiki User

Two driving forces behind natural selection are variation within a population, which creates diversity in traits, and differential reproductive success, where individuals with advantageous traits are more likely to survive and reproduce.

How did animals come to be?

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Asked by Wiki User

Animals evolved from single-celled organisms through a process of natural selection and genetic mutations over millions of years. The first animals likely arose from simple multicellular organisms in ancient oceans, diversifying into the wide array of species we see today through adaptation to different environments and ecological niches.

A Process that use observation and experimentation to gain knowledge is?

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Asked by Wiki User

The process that uses observation and experimentation to gain knowledge is known as the scientific method. This method involves making observations, forming a hypothesis, conducting experiments, analyzing data, and drawing conclusions based on evidence collected. It is a systematic approach to understanding the world around us.

What is the Cosmozoic Theory of Evolution?

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Asked by Wiki User

The Cosmozoic theory of evolution suggests that life on Earth originated from space, rather than evolving solely on our planet. It posits that life's building blocks, such as amino acids and DNA, arrived on Earth via comets or meteorites and led to the development of life as we know it. This theory challenges traditional views of the origins of life on Earth.