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Biology, 22.06.2019 08:50
Blood stem cells may develop into any kind of human blood cells. what kind of stem cells are blood stem cells? a. multipotent stem cells o b. totipotent stem cells o c. pluripotent stem cells o d. unipotent stem cells
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Need , i need a scenario of: artificial selectionmutationnon random mating
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Hydrogen has only one electron in its only (and outer) electron shell. if a hydrogen atom were to absorb a small amount of energy, where would bohr say the electron would go? a. fly off the atom b. nowhere, it would just speed up. c. spiral inwards towards the nucleus d. move up to another shell that would form
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Biology, 22.06.2019 22:30
Based on their relative positions in the periodic table, which two elements would have the same number of valence electrons?
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Amutation is made once in every nucleotide copied....
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