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Which statement best describes embryonic stem cells? . a. embryonic stem cells are capable of self-renewal only. b. embryonic stem cells are capable of differentiation only. c. embryonic stem cells are capable of self-renewal and limited differentiation.. d. embryonic stem cells are capable of self-renewal and unlimited differentiation.
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Next pretest: evolution select the correct answer in a laboratory population of flies, the female flies are gray and the males are yellowish gray. biologists observed that all the male flies had an equal chance for reproduction, but the male flies with the brightest colors were more likely to successfully reproduce. what phenomenon could explain such a change? a sexual selection b. disruptive selection c. stabilizing selection d. directional selection
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Why do we perceive objects as retaining their brightness under different lighting levels?
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Which statement best describes embryonic stem cells? . a. embryonic stem cells are capable of self-...
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