Biology Answers

Discuss the effectiveness of childhood vitamin A supplementation to reduce morbidity under the following topics:

The cells,tissues and the structure of the immune system(10)

The role of vitamin A in immunity

Your interaction of effectiveness of vitamin A supplementation in children to address morbility.Indicate what possible reasons be for the current levels of effectiveness

Which hormone has broadest range of targets

1- THYROXIN

2-ADH

3-EPINEPHRINE

Which hormone has broadest range of targets

a- epinephrine

b- TSH

c- thyroxin

d-ADH

DNA different from RNA

1.1   What would the effect of each reagent (control buffer; substrate buffer; citric acid and ascorbic acid) be on the browning process?                                                                                                                              (4)

what is microscope

what is vacuole