Will mark !
the images show fossils of a modern bird and two extinct organisms (a tyrannosauru...
Biology, 14.01.2020 21:31 brainBoy1766
Will mark !
the images show fossils of a modern bird and two extinct organisms (a tyrannosaurus rex and an archaeopteryx). based on the structure of the three organisms, it can be concluded that a. they share a common ancestor b. they do not share a common ancestor c. they are not linked through evolution. the archaeopteryx and bird have wings, while dinosaurs have limbs. so, it can be concluded that .a. the archeopteryx evolved from birds b. the archeopteryx came after dinosaurs but before birds c. the archeoteryx evolved before nonflying dinosaurs?
Answers: 3
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Wht happens as electrons in the electron transport chain release their energy
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Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.
Answers: 1
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