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Biology, 21.06.2019 19:30
All living organisms are composed of a. only one cell. b. at least 100 cells. c. at least three cells. d. one or more cells.
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Biology, 22.06.2019 14:30
Even though the ostrich is a flightless bird, ostriches still possess wings that stretch approximately two meters across when fully extended. scientists speculate that when dinosaurs became extinct, some of the birds that lived during that time became land dwellers since they were able to consume the food that the dinosaurs once ate. over time, these species grew larger and heavier. eventually, the ostrich species became too big to fly. the wings found on ostriches are known as a. analogous structures. b. homologous structures. c. vestigial structures. d. symmetrical structures.
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Biology, 22.06.2019 23:00
Which of the following is directly affected by the cardiovascular system?
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What is one of the weaknesses of the Bubble model...
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