How can enzymes convert blood group A, B, and AB into blood group O?

Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?

Error analysis: what might be the reason that some of your percentages didn't exactly match your predicted results? gametes aren't responsible for inheritance. mice don't have large litters, so the sample size was not large enough. the wrong type of mice were used.

Which type of transport is responsible for oxygen entering into blood cells? a. vesicle b.passive c. facilitated d.active b.passive