How does oxygen production relate to the rate of photosynthesis?

How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain

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

Diabetes is often suspected when glucose shows up in urine tests. use the model to explain how glucose could be present in urine. why do you think this symptom is especially concerning for young people?