Answer:
A switch is used to make a circuit ON and OFF.
A holder is used with a lamp
Explanation:
There are conjoined twins which are formed, a single egg develops into 1 baby. Sometimes a single egg divides in half 1 to 2 weeks after it's fertilized. This creates a set of identical twins. The exact cause of conjoined twinning is not known.
There are non identical twins.Non-identical twins form from two completely separate eggs which are fertilised by two completely separate sperm. These fraternal twins are no more alike than any other siblings in a family with the same biological mother and father. Because identical twins share the same genes, they are always the same gender.
Answer:
Blood pressure
Explanation:
Blood pressure is the force that blood exerts upon the walls of the blood vessels or chambers of the heart.
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