What’s the role of oxygen in cellular respiration?

Which of the following typically characterizes a tropical rainforests

Two critical interventions to turn around the opioid crises are:

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.