Name two components of the plasma membrane that act as receptor for cell signalling/recognition?

Yes we are in our fathers before we are in our mothers because the sperm cell come in from our fathers and than join with egg sell both make a human. So we can say that sperm is 1st and egg is 2nd.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.