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- 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.Which of the following is the best definition of a major transition in evolution? Individuals evolve traits the help them fight off rivals Formerly independent replicating individuals form a collective that reproduces together A group of individuals evolve traits that help them individually forage better Individuals evolve traits that allow them to colonize a new environment.. 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?
- 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 of the following is NOT an example of evolution? Group of answer choices Increased wealth in children of wealthier parents Transitional forms in the fossil record Increase in frequency of large beaked finches after a drought Homology in forelimb structures in different tetrapods (4-limbed vertebrate animals)Which sequence of events in human evolution is most widely accepted? A. increase in brain size, tool-use, bipedalism, movement out of Africa B. tool-use, bipedalism, increase in brain size, use of fire C. bipedalism, increase in brain size, tool-use D. tool-use, use of fire, increase in brain size E. bipedalism, tool-use, increase in brain size How do we know that the footprints discovered by Mary Leakey’s team at the site of Laetoli are those of bipedal hominids? A. There is no evidence of a divergent big toe B. The stride width and length were similar to modern humans C. There is evidence of an arch D. all of these E. A and C only Which of the following were the first to arrive to the Western Hemisphere? A. Modern Homo sapiens B. Archaic Homo sapiens C. Homo erectus D. Neanderthals
- In the given below option which of the following is not a component of evolution bynatural selection?1. Variation exists within a population.2. Organisms compete for resources.3. Individuals have different reproductive success.4. Organisms adapt due to environmental changes.5. Species are fixed.What is an adaptation in the context of evolution? A heritable trait that was favored by natural selection. choose one of the following. A random genetic mutation that causes a new trait in a population. The ability of an individual to adjust to their environment as it changes..It has taken millions of years for the ancestors of whales to change into what we know today, as indicated in the diagram below. Based on your knowledge of evolution, which of the following is a reasonable explanation of why the organisms in the diagram changed over 25 million years? Question options: As the environment changed the food sources became more difficult to obtain so characteristics that allowed the organisms to hunt in an aquatic environment became more advantageous. As the environment changed the temperature became too hot and the organisms began to move to a more aquatic environment to keep cool. As the environment changed the food sources became more difficult to obtain so the organisms decided to change their characteristics to ones that would be beneficial when hunting in an aquatic environment. As the environment changed the predators on land became better adapted to hunting the whales ancestors forcing them to live in more aquatic…
- Lamarck proposed that evolution occurs through the following basic steps: Organisms are born with certain traits. Over the course of an organism's life, these traits gradually change due to pressures in the environment. The changes that occurred during an organism's life are passed on to its young. This idea is similar to current understandings of how evolution works, but it is not quite correct. Which of the following situations is a counterexample that disproves Lamarck's proposed pattern of how evolution occurs? A. Even though the ability to fly would be useful to snakes, snakes cannot spontaneously grow wings. B. Dolphins and whales have become hairless because the fast movement of the water removes all the hair. C. A person who is a championship bodybuilder does not have children who are naturally muscular at birth.Which of the following statements is NOT true about evolution? Group of answer choices A-Evolution has been supported by a mounting body of genetic evidence B-Humans share a recent common ancestor with other primates C-The main principle of the theory of evolution is the simple fact that humans evolved from monkeys D-The theory of evolution has been tested and subjected to verification through accumulated evidence (and has not been disproved) E-Evolution can be studied at the microevolutionary or macroevolutionary levelWhich of the following examples (some from class) are examples of evolution by natural selection? Choose all that apply. (1 or more are correct) Group of answer choices A_Evolution of rock pocket mice population to blend in with dark lava environment B_Evolution of high prevalence of disease alleles of an endangered species whose habitat was quickly destroyed to less than 5% remaining C_Evolution of high prevalence of sickle cell allele in areas with endemic malaria D_Evolution of a small population where most of the individuals with a red-hair mutation were killed off by a storm