A combination of two or more metals is called and Alloy.
Answer:
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It enters and or leaves it through two separate mechanisms. One is the Sodium potassium pump which works as a gatekeeper for sodium and potassium ions that go in and out of the cell. This is active transport. Another way how it enters/leaves cells is with the help of passive ion channels where they can cross without much difficulty.
it's (C)
3 right -opening mouth; 1 left opening mouth
