Suppose a segment of mitochondrial dna (mtdna) is compared between two similar modern-day species. it is known that this segment of mtdna changes at a steady rate of one base pair every 4 million years. compare the sequences of the two mtdna segments given below. species a: gcactaagcatcgattt species b: gcaccaggcactggttc use the basic principle of molecular clocks to calculate how long ago the two species diverged from a common ancestor. 12 million years ago 8 million years ago 48 million years ago 24 million years ago
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How are the tortoises that darwin observed on the galápagos islands similar to the anoles that losos studied
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The model illustrates a process by which a substance is taken up by a cell
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Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction. this is an example of speciation.
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Suppose a segment of mitochondrial dna (mtdna) is compared between two similar modern-day species. i...
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