Modern scientific explanations of evolution have replaced Darwin's thinking. They combine the principles of natural selection and genetic inheritance. These explanations rely on genetics instead of natural selection. However, they do not fail to explain how traits are inherited.
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Modern scientific explanations of evolution have not completely replaced Darwin's thinking, but rather built upon and refined his ideas with new discoveries and advancements in genetics. b. Modern scientific explanations of evolution do combine the principles of Show more…
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"key 'point in Darwin's explanation of evolution is that the biological structures most likely inherited are those that have become better suited to the environment through constant use: mutations that occur are those that will help future generations fit into their environments_ any trait that confers even a small increase in the probability that its possessor will survive and reproduce will be strongly favored and will spread through the population. genes change in order to help organisms cope with problems encountered within their environments_ extinction is nature's way of weeding out undeserving organisms"
Adi S.
Darwin's theory of evolution by natural selection is based on four observations about the natural world. One of them is that each individual has a combination of traits that makes it uniquely different. Darwin recognized that much of this variation among individuals must be inherited, but he did not know about Mendel's mechanism of inheritance. Based on what you have learned in this chapter, briefly explain the variation among individuals that Darwin observed.
Which of the following ideas is not included in Darwin's theory? a. All organisms that have ever existed arose through evolutionary modifications of ancestral species. b. The great variety of species alive today resulted from the diversification of ancestral species. c. Natural selection drives some evolutionary change. d. Natural selection preserves advantageous traits. Natural selection eliminates adaptive traits.
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