Can somebody please help me with all the question?

Plz ! ive been stuck on this forever

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

Dna. we have heard that we are a product of our dna. but where is it? how do we "get" our dna? it is passed to us, from our parents, but in what form? several vocabulary words associated with inheritance are used interchangeably and sometimes, incorrectly. let's see if you can clear this up for someone just learning about inheritance and cell structure.