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- 2. The presence of homologous structures is a strong indicator that the organisms evolved from common ancestors. Which type of evolution does the statement describe? * a. Divergent Evolution b. Convergent Evolution c. Evolution Theory d. Competent Evolution1. What evidences are supported by modern technologies? 2. What recent evidences prove that evolution is taking place? 3. What environmental changes happened from the time of the earliest to the most recent species?1. We have sent two objects into distinct space with information meant to be found by an extraterrestrial intelligence, the Pioneer Plaque and the Voyager Golden Record. Pick one of these objects and describe three things included. 2. In class we discussed the emergence of intelligent life on Earth. Why might or might not this be considered an evolutionary advantage? 3. In biological terms, what is the definition of a species?
- 19. What is the term for a feature that allows an organism to survive better in its environment? * a. variation b. adaptation c. homologous structure d. vestigial structure 20. Charles Darwin found fossils that looked like ancient versions of living species. From this evidence Darwin suggested that Earth was * a. much more than 6000 years old. b. less than 6000 years old. c. only 6000 years old. d. about 1000 years old1. Why is there a need to classify the great diversity and life? 2. How do you explain evolution to people who believe that it is just a theory?The theory of evolution was controversial when it was first proposed in 1859, yet within 20 years virtually every working biologist had accepted evolution as the explanation for the diversity of life. Explain in at least 50 words why.
- Which of the following does not contribute to the study of evolution? a. population genetics b. inheritance of acquired characteristics c. the fossil record d. DNA sequencing e. comparative morphologyWhich of the following ideas is not included in Darwins 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. e. Natural selection eliminates adaptive traits.Which of the following statements about evolutionary studies is not true? a. Biologists study the products of evolution to understand the processes causing it. b. Biologists design molecular experiments to examine evolutionary processes operating over short time periods. c. Biologists study the inheritance of characteristics that a parent acquired during its lifetime. d. Biologists study variation in homologous structures among related organisms. e. Biologists examine why a huge variety of species may inhabit a small island cluster.
- Evolution is based on which of the following concepts? (a) organisms share a common origin (b) over time, organisms have diverged from a common ancestor (c) an animals body parts can change over its lifetime, and these acquired changes are passed to the next generation (d) a and b (e) a, b, and cWhich situation is most likely an example of convergent evolution? Squid and humans have eyes similar in structure Worms and snakes both move without legs Some bats and birds have wings that allow them to fly all of the aboveCONNECT In what way does the modern synthesis strengthen scientific understanding of evolution? (a) is based on the sequence of fossils in rock layers (b) uses genetics to explain the source of hereditary variation that is essential to natural selection (c) was first proposed by ancient Greek scholars (d) considers the influence of the geographic distribution of organisms on their evolution (e) is reinforced by homologies that are explained by common descent