Because he was well aware of the effect his theory of evolution would have on the public and on the Church of England, Darwin delayed publishing his work for several decades while he gathered additional evidence. After invoking selective breeding of domesticated species as evidence that groups of organisms are capable of change, he then proposed that natural populations can change as well. On which two lines of evidence did he base this proposal?Group of answer choicesOrganisms within a population vary, and all populations produce more offspring than can be supported by the environment, resulting in competition for survival within the population.Organisms produce more offspring than can be supported by their environment, and adaptations to specific environments increase an organism's ability to survive and reproduce.Some individuals leave more descendants than other individuals, but the individuals in a population are essentially identical to each other.Some individuals within a population have greater survivability and reproductive success than others, and favorable traits within a population will accumulate over generations. PreviousNext

In his book On the Origin of the Species, Charles Darwin described how species change over time. Which of the following is NOT part of his observations that describes the mechanisms of natural selection? Group of answer choicesDisease and natural disaster will limit population growth.Species today descended with modifications from ancestral species.Organisms produce more offspring than can survive.Organisms with advantages will survive and reproduce.

Charles Darwin was born in 1809 in Shrewsbury, England. He was a biologist whose famous theory of evolution is important to philosophy for the effect it has had on ideas relating to the nature of men. After many years of careful study, Darwin attempted to show that higher species came into existence as a result of the gradual transformation of lower species and that the process of transformation could be explained through the selective effect of the natural environment upon organisms. He concluded that the principles of natural selection and survival of the fittest govern all life. Darwin’s explanation of these principles is that because of the food supply problem, the young of any species compete for survival. Those young that survive to produce the next generation tend to embody favourable natural changes that are passed on by heredity. His major work that contained these theories is On the Origin of the Species, written in 1859. Many religious opponents condemned this work.Q.    According to the passage, how was Darwin’s book, On the Origin of the Species, received? Question 23Answera.Religious opponents condemned Darwin’s book. b.The world ignored Darwin’s book. c.Scientists gave their immediate approval of Darwin’s book.d.Darwin’s book became an immediate bestseller

What were the three key observations made by Darwin that allowed him to deduce that natural selection is a primary driver of evolution?Group of answer choicesSpecies change due to the next generation inheriting genes based on their parent's behaviors.Gene flow and mutations provide the right changes for future generations to thrive.Organisms produce more offspring than survive, variation exists among individuals, and advantageous variations increase in relative frequency over time.The number of adults tends to remain the same over time, individuals vary little over time, and natural selection works on only the best of those adults in each generation.

What did Darwin study in his research of artificial selection?a. Dogs and catsb. Farm and pet animalsc. Birds of preyd. Insects

Why was Charles Darwin initially hesitant to share his findings with the public?