Q1:
D. T. vaginalis flagellae

Correct. You have noticed that each of the slender structures indicated by the arrows arise from the tear-drop-shaped body of a protozoan. In a fresh wet mount, these organisms are motile and will be seen darting around the field. The flagellae will be in motion and be only intermittently visible. The presence of these protozoa in a vaginal wet mount, whether the woman is symptomatic or not, requires specific treatment.