The image shows the beak shapes of four different finches observed by Charles Darwin on the Galapagos Islands. Darwin observed that broad-beaked finches prefer to eat large, hard seeds, while finches with narrow beaks eat small, soft seeds. What did Charles Darwin infer from this study that led to the development of the Theory of Evolution? O Finches with broad beaks have higher survival rates than finches with narrow beaks. O Finches with narrow beaks gradually evolve broader beaks to feed on all types of seeds. O The finches evolved from different ancestors with different shapes of beaks. O The finches evolved from a common ancestor and developed different beak shapes adapt to the food available.

The image shows the beak shapes of four different finches observed by Charles Darwin on the Galapagos Islands. Darwin observed that broad-beaked finches prefer to eat large, hard seeds, while finches with narrow beaks eat small, soft seeds. What did Charles Darwin infer from this study that led to the development of the Theory of Evolution? O Finches with broad beaks have higher survival rates than finches with narrow beaks. O Finches with narrow beaks gradually evolve broader beaks to feed on all types of seeds. O The finches evolved from different ancestors with different shapes of beaks. O The finches evolved from a common ancestor and developed different beak shapes adapt to the food available.

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter19: Evolutionary Change In Populations

Section: Chapter Questions

Problem 10TYU: Which of the following is not true of natural selection? (a) natural selection acts to preserve...

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Darwin's studies of Galapagos finches are well known in the study of evolution. These studies have been instrumental in helping us understand how new species evolved from pre-existing species. Which statement is true about the speciation of the Galapagos finches? A) The finches evolved traits to help them survive in different environments. B) The finches had different traits that influenced the environment in which they chose to live. C) Genetic variation occurred amongst the finches, giving some a genetic advantage in a changing environment, allowing them to better survive. D) Members of the original population evolved in such a way that it became impossible for individuals from the two new populations to interbreed. not graded use photo
This spectacular animal is a Lesser Bird of Paradise, Paradisea minor, from the highlands of Papua New Guinea. In the context of various evolutionary phenomena, why do you suppose: (a) This bird is confined to New Guinea and two nearby islands? Why would you not expect to find it in the mountains of Borneo? Explain in detail. (b) This spectacular tail presumably attracts predators; why hasn't natural selection acted to reduce it or camouflage it? Explain in detail.
. The images below show two separate theories of how organisms evolve. Which question below directly corresponds to whether Lamarck or Darwin are correct about their theories of the mechanisms of evolution? Why don’t the shorter neck giraffes feed on grasses and lower vegetation? How would the shorter necked giraffes in Lamarck’s theory survive to reproduce and pass on the “need” for longer necks if they were unable to reach food? Why won’t the taller necked giraffes in Darwin’s theory provide assistance to the shorter giraffes since they are the same species? Will the smaller giraffes be more adapted to hide from predators since they wouldn’t be visible from greater distances?
Darwin's studies of Galapagos finches are well known in the study of evolution. These studies have been instrumental in helping us understand how new species evolved from pre-existing species. Which statement is true about the speciation of the Galapagos finches? Responses A The finches had different traits that influenced the environment in which they chose to live. The finches had different traits that influenced the environment in which they chose to live. - no response given B The finches evolved traits to help them survive in different environments. The finches evolved traits to help them survive in different environments. - no response given C Members of the original population evolved in such a way that it became impossible for individuals from the two new populations to interbreed. Members of the original population evolved in such a way that it became impossible for individuals from the two new populations to interbreed. - no response given D Genetic…
While the French biologist LaMarck was correct in proposing that evolution does occur, he believed that the long necks of giraffes evolved as generations of giraffes reached for ever higher leaves on the trees. Using these observations, LaMarck proposed the theory that evolution occurs due to the inheritance of characteristics acquired during an organism’s lifetime. From what you know about the scientific method, why is this incorrect?
Which question below directly corresponds to whether Lamarck or Darwin are correct about their theories of the mechanisms of evolution? A.) Why don’t the shorter neck giraffes feed on grasses and lower vegetation? B.) How would the shorter necked giraffes in Lamarck’s theory survive to reproduce and pass on the “need” for longer necks if they were unable to reach food? C.) Why won’t the taller necked giraffes in Darwin’s theory provide assistance to the shorter giraffes since they are the same species? D.) Will the smaller giraffes be more adapted to hide from predators since they wouldn’t be visible from greater distances?
Which of the following is not true of natural selection? (a) natural selection acts to preserve favorable traits and eliminate unfavorable traits (b) the offspring of individuals that are better adapted to the environment will make up a larger proportion of the next generation (c) natural selection directs the course of evolution by preserving the traits acquired during an individuals lifetime (d) natural selection acts on a populations genetic variability, which arises through mutation (e) natural selection may result in changes in allele frequencies in a population
EVOLUTION LINK Write short paragraphs explaining each of the following statements: (a) Natural selection chooses from among the individuals in a population those most suited to current environmental conditions. It does not guarantee survival under future conditions. (b) Individuals do not evolve, but populations do. (c) The organisms that exist today do so because their ancestors had traits that allowed them and their offspring to thrive. (d) At the molecular level, evolution can take place by the replacement of one nucleotide by another. (e) Evolution is said to have occurred within a population when measurable genetic changes are detected.
Which concepts characterized Lamarck's hypothesis about evolution? Select all that apply. Over many generations, individuals that have more adaptive traits tend to survive longer and reproduce more than less fit rivals. Environmental pressures caused an internal requirement for change in an individual, and the individual would change to meet this pressure Species gradually improved over generations due to an inherent drive toward perfection. Changes acquired to meet environmental pressures during an individual's lifetime would be inherited by offspring.
Jean-Baptiste Lamarck was one of the first scientists to propose a method for evolutionary change. He suggested that an organism's body would adapt to its surrounding based upon the use or disuse of certain body parts. Why was this a mistaken idea? a As species become distinctly different from each other, so do their body forms, which is a result of their genes changing. b Individuals adapt and change, not populations. c Evolutionary change can only act upon traits that are inheritable, not traits that are acquired through an organism's lifetime. d When an organism migrates to a new environment or the environment it currently lives in changes, the organism must adapt, or it will not survive.
How might an evolutionary biologist explain why a species of salamander becomes blind after colonizing a cave? Group of answer choices Members of the ancestral population that colonized the cave differed in their ability to see. If maintaining the ability to see in the cave was a waste of energy, blind salamanders might actually have more offspring than those who could see. It is possible that in the cave there is a source of pollution that increases the mutation rate for a gene that makes salamanders blind. Over time, due to exposure to this chemical, the membersof the population lose their sight. There is no way to explain this in terms of natural selection. The members of this salamander species no longer needed to use their eyes. Over time, due to lack of use, they lost the ability to see.
1) Darwin's studies of Galapagos finches are well known in the study of evolution. These studies have been instrumental in helping us understand how new species evolved from pre-existing species. Which statement is true about the speciation of the Galapagos finches? A) The finches evolved traits to help them survive in different environments. B) The finches had different traits that influenced the environment in which they chose to live. C) Genetic variation occurred amongst the finches, giving some a genetic advantage in a changing environment, allowing them to better survive. D) Members of the original population evolved in such a way that it became impossible for individuals from the two new populations to interbreed. Not graded