The English demographer/economist whose work on population growth  influenced Darwin’s thinking on adaptation was:Group of answer choicesJean-Baptiste de Lamarck.Georges Cuvier.Thomas Malthus.Charles Lyell.

Darwin's development of natural selection was influenced by the writings of the economist Thomas Malthus, who noted thatGroup of answer choicesspecies change as their environment changes.there is a great deal of variation in nature.many organisms will not survive to adulthood.economic competition is analogous to survival of the fittest.

Darwin's development of natural selection was influenced by the writings of the economist Thomas Malthus, who noted thatGroup of answer choices

Select all the reasonings of Charles Darwin that were influenced by Thomas Malthus's essay.Multiple select question.All members of a population are well-adapted to obtaining resources.More individuals are born into a population than the habitat can support.Some individuals in a population are better able to obtain resources than others.All individuals in a population can adapt to the habitat.There is variation in a population.

What insight did Darwin gain from reading Thomas Malthus's essay on human suffering?Group of answer choicesOrganisms have the capacity to over reproduce.Favorable characteristics of a population accumulate over time.Natural selection should be capable of considerable modifications over hundreds of thousands of generations.Population size usually remains relatively stable. PreviousNext

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