A three bipolar lead arrangement is used to record an ECG. At a particular time during the cardiac cycle, the measured voltage on Lead I is 1 mV. At this time, the cardiac vector (M) is directed at 45 degrees with respect to Lead I vector. (a) What is the voltage associated with the cardiac vector at this time (5 points)

Which statement about dna replication is true? a. eukaryotes only have one circular chromosome that unwinds at multiple locations. b. eukaryotes can only replicate one segment of a chromosome at a time. c. prokaryotes can only replicate their single circular chromosome in the nucleus. d. prokaryotes only have one origin of replication to initiate replication.

Why are fossils not found in igneous rocks? igneous rocks are made from cooling of lava or magma. igneous rocks are found too deep underground. igneous rocks are too dark in color to contain fossils. igneous rocks are too dense to contain fossils.

Select the correct answer from each drop-down menu. which phase of mitotic division is the highlighted cell undergoing? the cell is undergoing , which is the stage before .