It is true , they're all from the nucleus
Answer:
The Immune system is a complex network of cells (such as lymphocytes) and organs that work together to defend the body against foreign substances (antigens) such as bacteria, a virus or tumor cell.
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Answer:
ball hit into the net, may still be kept in play (up to 3 hits) provided that a player does not make contact with the net. Players may not touch the net. If 2 opposing players touch the net simultaneously, the ball is declared dead and is replayed