Alan Cooper, Cécile Mourer Chauviré, Geoffrey Chambers, Arndt von Haeseler, Allan Wilson and Svante Pääbo investigated the evolutionary relationships among some extinct and living species of flightless birds. They concluded that kiwis are more closely related to African and Australian flightless birds than they are to the moas. What new hypothesis did they propose based on this conclusion?
A. That their data was incorrect and the sample from the museum was corrupted.
B. That flightless birds only occurred once in New Zealand.
C. That New Zealand was colonized twice by ancestors of flightless birds.
D. That the South American species' ancestors flew to New Zealand before the flightless mutation occurred.
E. That the North American flightless bird originated from an ancestor of the New Zealand species.
C. That New Zealand was colonized twice by ancestors of flightless birds.
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What is the name of the structure formed when the 10 nm fibers of chromatin form a cylindrical filament of coiled nucleosomes?
What will be an ideal response?
Some of Darwin's most important discoveries were based on studies of birds and tortoises he observed in what location?
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