In which of the following situations is a plant reproducing through pollination? A. A new shoot emerges from a strawberry plant and produces another plant. B. The pollen from one flower is transported by an insect to the ovule of another flower. C. Pollen of a cactus plant falls off and begins to form a new plant. D. A potato plant produces a tuber, and the next year, a new plant grows from the

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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

What are some characteristics of a free enterprise economy?