Question

vitamin a plays a critical role in all of the following functions except _________.
multiple choice
blood clotting
immune response
vision
maintaining a healthy digestive tract

Explanation:

Vitamin A is crucial for vision (as it is part of rhodopsin in the eyes), immune response (supports immune cell function), and maintaining a healthy digestive tract (aids in cell differentiation and mucus production). Blood clotting is mainly associated with vitamin K (which helps in the synthesis of clotting factors like prothrombin).

Answer:

blood clotting