What path does a molecule of o2 take from the nose to the respiratory surface? pharynx → larynx → trachea → bronchus → bronchiole → alveolus larynx → pharynx → trachea → bronchus → bronchiole → alveolus pharynx → larynx → bronchus → bronchiole → alveolus → trachea pharynx → larynx → trachea → bronchiole → bronchus → alveolus?

The body is protected against harmful flu viruses by

Which organelles are labeled d, and what is one feature that distinguishes them from the other labeled organelles chloroplasts the only organelles that produce sugars from sunlight mosomes, only found in animal and bacterial cells centricles only found in animal cells mitochondra, the only energo-generating structures found in cells

In what part of the body does the most muscle activity happen?