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Biology, 21.06.2019 20:40
Match the following terms describing electrical events with the correct phases of the cardiac cycle. the ventricular muscle cells depolarize at the start of this phase. during this phase, na+ entry through the funny channels causes the pacemaker potential of sa nodal cells to gradually become less negative until it reaches threshold. the ventricular muscle cells repolarize right before this phase. the cytosolic concentration of calcium in the contractile cells of the ventricle is highest during this phase. a. isovolumetric relaxation b. ventricular ejection c. isovolumetric contraction d. ventricular filling
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Biology, 21.06.2019 22:00
Hey me with this one❤❤❤❤ every organism needs food. does a cell also need it? explain very briefly.
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Crossing over and independent assortment are important activities that occur during meiosis. what is the significance of these activities
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What condition occurs if there is decreased kidney elimination of hydrogen ions or increased product...
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