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Biology, 22.06.2019 00:30
When analyzing tree rings, what do scientists assume a thin ring indicates?
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Biology, 22.06.2019 10:00
14. which of the following codons code for threonine? a. ucg b. ugu c. cga d. aca
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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 15:30
Adistinctive characteristic of mammals that is not observed in other vertebrates is
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18. Which process is most likely involved in the change in red blood cell volume in this experiment?...
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