Answer:
Relative age dating is the process of determining if one rock or geologic event is older or younger than another, without knowing their specific ages
Absolute age dating is measuring the physical properties of an object itself and using these measurements to calculate its exact age
Explanation:
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Answer:
Possible blood type of their children is type A and type B blood
Explanation:
A person can have type A, type B, type AB or type O blood.
A woman who has type AB blood marries a man with type O blood.
Parents AB x OO
Possible genotypes AO BO
Possible blood type of their children is type A and type B blood
The plateau phase of an action potential in cardiac muscle cells is due to the influx of Ca2+ ions through the slow Ca2+ channels.
Different electrical pattern is involved in all the contractile cells. In cardiac muscle cells, there is a rapid depolarization which is followed by a plateau phase and then the repolarization occurs. This allows the cardiac muscle cells to pump blood effectively because of the long refractory period.
During the plateau phase, the action potential of the membrane drops slowly . This happens due to the opening of the slow calcium ion channels which allow the Ca2+ ions to enter the cell. Few K+ channels are also open which allow some K+ ions to exit the cell.
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In eukaryotes such as plants and animals, cells containing mitochondria carryout the most ATP production via the electron transport chain (ETC), also known as chemiosmosis or oxidative phosphorylation.