<span>microorginisms tinggal di usus memecah makromolekul / membantu pencernaan</span>
Answer:
Alveoli
Explanation:
The smallest branches are called bronchioles and at the end of these are your air sacs (alveoli).
The small intestine has cilia to absorb nutrients and reabsorb water
Designing efficacious norovirus vaccines remains a major challenge due to several factors:
(1) the extreme genetic variability within the norovirus family and within genogroups
(2) the rapid evolution of antigenically dissimilar pandemic GII.4 norovirus strains
(3) the lack of lasting immunity upon natural exposure to noroviruses in at least a proportion of the population.
