Explain why hydrogen atom can become either an ion or a part of molecule

20 in the formula no3, what does the subscript 3 mean?

Describe five factors that influence the value of fuel

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.