2)Which of the following describe examples where the mechanism of evolution was genetic drift? Choose all that apply a)A rock slide kills some of the lizards in a desert population b)Drought conditions cause trees that do not have sufficiently deep root systems to die off c)A group of squirrels float on a raft of debris from northern Missouri to southern Arkansas during a major flood on the Mississippi River d)A few ground squirrels use a fallen log to cross a river that divides two populations e)Lava flowing from a volcanic eruption in Hawaii separates a population of fish into two newly-formed bays

Q: What is the mechanism of evolution according to hugo de vries?

A: Hugo Marie de Vries was credited to discover the concept of genes and the "mutation theory"…

Q: Which law states evolution is irreversible?

A: Evolution is a natural process that includes several changes in the characteristics of a species…

Q: What is evolution and why is a basic knowledge of evolution necessary?

A: Evolution, in this unique context, is both a reality & a hypothesis. It's obviously true that…

Q: Do you think there is any similarity in the theories proposed by Darwin and Lamark? Explain.

A: Jean-Baptiste Lamarck (1744-1829) and Charles Darwin (1890-1882) are the 2 scientists who stated…

Q: What are the various types of evidence for the theory of evolution?

A: Evolution is characterized as any net directional change or any aggregate change in the qualities of…

Q: Which of the following conditions are required for natural selection?

A: Answer. Natural selection is a process in which the organism which is better adapted to the…

Q: How Do We Know That Evolution Has Occurred?

A: Evolution can be defined as the change that will occur in the quality of the species over different…

Q: Why did Darwin use the phrase “descent with modification” rather than “evolution”?

A: Charles Darwin was a British naturalist who gave the theory of biological evolution by natural…

Q: Darwin’s idea for the mechanism of evolution is called the Theory of Natural Selection. One…

A: Each generation produces more individuals capable of surviving. Individuals differ phenotypically,…

Q: can evolution be influenced by the starting population?

A: Evolution is the change in the characteristics of a species over several generations and it depens…

Q: What is the principle of natural selection?

A: Natural selection is the process of selecting individuals after the species had undergone…

Q: Generally, will natural selection result in an increase or decrease in variation? Why does this…

A: Darwin's theory of natural selection states that ; as many more individuals of each species are…

Q: What mechanism did Darwin propose for evolution? What threeword phrase summarizes this mechanism?

A: Evolution is the process by which the organism changes over the time period. This helps the organism…

Q: What is the Darwinian theory

A: Darwin is considered as the father of evolution. He gave the theory of evolution. He gave the theory…

Q: describe the logic, based on four postulates, by which Darwin and Wallace deduced that populations…

A: Evolution is change in the heritable attributes of organic populaces over progressive ages. These…

Q: What is an example of evolution?

A: Evolution is the change in the characteristics of a species over several generations and relies on…

Q: What was necessary to model evolution?

A: Theory of evolution natural selection given by Darwin.

Q: What are two ways to define evolution?

A: Evolution is the process by which organisms undergo genotypically changes and acquire modified…

Q: What are the various evidences in factors of evolution?

A: The process by which modern organisms have descended from their ancestors, with changes in their…

Q: Which of the following is not one of the four factors that produce and redistribute variation? Group…

A: INTRODUCTION The four factors that produce and redistribute variation are genetic drift, mutation,…

Q: What is meant by a mechanism of evolution?

A: Evolution is represented as a change over several generations in the inherited characteristics of…

Q: What conditions are necessary for evolution by natural selection?

A: Some kind of genetic variability is always present in a population. Such alleles make an organism or…

Q: Which of the following is molecularlgenetic evidence for evolution?

A: The molecular biological or genetic evidence for evolution gives the similarities between many…

Q: What is the 50-500 rule? What does each of these numbers represent? With what mechanism of…

A: A population is a collection of individuals of the same species that live with each other in a…

Q: What are the key concepts pertaining to the theory of evolution?

A: Evolution is the changes occurring in the characteristics of population and these characteristics…

Q: How did human farming influence the evolution of the sickle cell allele in human populations?

A: Sickle cell anemia is a genetic disease which is caused due the inheritance of the disease from the…

Q: Lamarck was an early naturalist who published his own ideas about species changing over time. He,…

A: Step 1 Theory of Inheritance of Acquired Characters or Lamarckism proposes that organisms undergo…

Q: The most important evidence that Darwin used to develop his theory of natural selection came from…

A: The change in the inheritable characteristics over time is evolution. Charles Darwin is designated…

Q: What are the four required conditions for natural selection to occur?

A: All organisms thrive in the environment. An organism is most successful if it is adapted well to the…

Q: Which factor is not required for natural selection to occur?

A: This question is based on evolution and natural selection.

Q: What is the relationship between evolution and natural selection?

A: Answer :  Evolution is the new species or something new evolve in a species and natural selection is…

Q: How does natural selection act on genetic variation? How can this lead to adaptations? How can a…

A: 1. Natural selection has the correlation where it acts directly on the phenotype and hence the…

Q: A small population of wood rats boarded a ship leaving Europe and ended up in South America where…

A: Answer. Natural selection: is a process by which the forms of organisms in a population that are…

Q: In Darwin's theory of natural selection, which of the following is a source of evolution:…

A: c.Individuals with random mutations who are able to reproduce.

Q: How did the industrial revolution in England offer an example of natural selection?

A: Introduction In this question we will discuss how did the industrial revolution in England offer an…

Q: Which of the following has been favored by natural selection for populations living near the equator…

A:

Q: Do you think that Darwin would object to the neutral theory of evolution?

A: Charles Darwin was a naturalist, geologist, and a biologist.  Darwin is best known for his…

Q: How do the events surrounding the Peppered Moth during the industrial era in Great Britain support…

A: The mechanism of natural selection involves the adaptation and modification of living organism…

Q: In addition to Darwin, who do we credit for formulating the theory of evolution by natural…

A: Natural selection is the basic mechanism of evolution. Charles Darwin’s theory of natural selection…

Q: What is punctuated equilibrium in the theory of evolution?

A: The idea is that new species emerge rapidly during short time periods (a few hundred to a thousand…

Q: In a couple sentences, explain where on the tree is evolution inferred to have happened?

A: Evolution is a continuous transition of living forms, beginning with the basic forms of the past and…

Q: What are the two steps in the process of evolution?

A: Evolution means the act of unfolding or unrolling and in simple terms, evolution is a random change…

Q: How does natural selection “work”, and what are the necessary pre-conditions for natural selection…

A: Darwin was one of history's towering  geniuses and ranks with the greatest heroes of man's…

Q: Derived traits are essentially mutations that were selected for (by natural selection) and thus…

A: Cladistics analyses also known as phylogenetic analysis is used to classify the organisms on the…

Q: In which of the following scenarios would evolution by natural selection take place? A banana tree…

A: Biological macromolecules are those large molecules that are necessary for the survival and growth…

Q: It was in this particular revolution that contradicted the biblical account of creation through…

A: Introduction :- Natural selection is the process through which individuals with various phenotypes…

Q: . What are the three principles of the theory of evolutionby natural selection?

A: Introduction :- Evolution refers to the change in a species' characteristics over several…

Human Evolution

Human evolution is the process of evolution of humans from early man to anatomically modern humans. The process of evolution in humans leads to the gradual development of traits like bipedalism. Humans are the highly social animals that make them the most advanced animal on Earth.  Human evolution is an outcome of interaction among the following processes: