The constant regions of antibodies (Fc regions) primarily determine the antibody's class and are involved in mediating immune responses, such as binding to Fc receptors on immune cells. They do not vary significantly between different antibodies of the same class, unlike the variable regions that recognize specific antigens. Therefore, a statement claiming that the constant regions vary greatly among different antibodies would not be true.
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true (A+)
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It has a constant rate of change. It can be curved. It looks like a straight line. It must cross the origin.
Yes, it is true that an equilibrium constant is not changed by a change in pressure.
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independent variable
No, it is not true.
It's not. If you speed is constant (but not zero), then your velocity won't be zero, either.You may be confusing this with the following: If your VELOCITY (not your speed) is constant, then your ACCELERATION is zero. Acceleration refers to how quickly velocity changes, so if velocity doesn't change at all, acceleration is zero.
In a theoretical scenario with constant velocity, the true acceleration would typically be zero.
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