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How old is the earth? a. 5 billion years old b. 50 billion years old c. 1 billion years old

How old is the earth? a. 5 billion years old b. 50 billion years old c. 1 billion years old d. 1 million years old. Early fossilized cells from ~3.8 billion years ago resemble _____ cells from today. a. eukaryotic b. plant c. fungal d. prokaryotic.

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How old is the earth? a. 5 billion years old b. 50 billion years old c. 1 billion years old

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  1. How old is the earth? a. 5 billion years old b. 50 billion years old c. 1 billion years old d. 1 million years old

  2. Early fossilized cells from ~3.8 billion years ago resemble _____ cells from today. a. eukaryotic b. plant c. fungal d. prokaryotic

  3. What is the cause of the mass extinction that wiped out the dinosaurs? An asteroid slammed into Chicxulub, Mexico b. A large volcano erupted in Sumatra c. The earths plates cracked and the reptiles fell to the center of the earth d. an increase in methane from dinosaur flatulence led to the melting of the polar ice caps which heated the earth

  4. What time period was the last ice age in? a. Precambrian b. Cenozoic c. Paleozoic d. Mesozoic

  5. All of the following are true EXCEPT? Variations in a population may be inherited b. Under normal conditions most animals mate randomly c. Organisms tend to reproduce more offspring than the ecosystem can hold d. Organisms with better suited alleles survive and reproduce

  6. A human and a chimpanzee both having a common ancestor is an example of sexual selection divergent evolution c. convergent evolution d. homologous structures

  7. A shark and whale both swim in the ocean and have a torpedo shaped body, this is an example of? Coevolution divergent evolution c. convergent evolution d. sexual selection

  8. Certain bees only drink the nectar from one type of flower, and that flower is only pollinated by that one type of bee. This is an example of? divergent evolution homologous structures convergent evolution coevolution

  9. What is the best example of an analogous structure? a. A human appendix b. the wing of a bee and the wing of a bird c. A human male heart and a human female heart d. A dog leg and a cat leg

  10. Which of the following is not an example of mimicry?

  11. Mutations in organisms occur___.

  12. As small changes accumulate it could cause two lines to ___

  13. The scarlet honeycreeper used one flower as a source of nectar. This flower was becoming increasingly rare. What may happen to the scarlet honeycreeper?

  14. A chemical known as 5-bromouracil causes a mutation that results in the mismatching of molecular bases in DNA. The offspring of organisms exposed to 5-bromouracil can have mismatched DNA if the mutation occurs in

  15. A species that lacks the variation necessary to adapt to a changing environment will most likely

  16. Which statement is best supported by the theory of evolution?

  17. The pedigree of Seattle Slew, a racehorse considered by some to be one of the fastest horses that ever lived, includes very fast horses on both his mother’s side and his father’s side. Seattle Slew most likely was a result of

  18. Which action would be least likely to harm endangered species?

  19. A characteristic that an organism exhibits during its lifetime will only affect the evolution of its species if the characteristic

  20. A species of bird known as Bird of Paradise has been observed in the jungles of New Guinea. The males shake their bodies and sometimes hang upside down to show off their bright colors and long feathers to attract females. Females usually mate with the “flashiest” males. These observations can be used to support the concept that

  21. Agriculturists have developed some varieties of vegetables from common wild mustard plants, which reproduce sexually. Which statement best explains the development of these different varieties of vegetables?

  22. Which statement concerning the evolution of species A, B, C, D, and E is supported by the diagram below?

  23. A manatee is a water-dwelling herbivore on the list of endangered species. If manatees were to become extinct, what would be the most likely result in the areas where they had lived?

  24. Which statement provides evidence that evolution is still occurring at the present time?

  25. Which reproductive pattern would be associated with a species that is most likely to undergo rapid evolutionary change?

  26. The remains of three organisms are shown below. A study of these remains would indicate that these organisms have

  27. Small ground finches and medium ground finches live on an island with abundant plant and animal food. Predict how the small ground finch and the medium ground finch would be affected if warbler finches migrated to the island where these finches live. Support your answer.

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