Movement of our hands is under our will but movement of alimentary canal is not under our will why?​

Which factor is least likely to influence one's choice of purchase? a friend's opinion the advice of a salesperson the price of an item the day of the purchase

Is the process by which biological parents pass traits such as hair type or eye color to their children. these traits may affect their well-being and health.

Which food would be considered to be a nutrient-poor snack choice? low fat yougurt, nuts and raisins, fruit filled doughnut, raw vegetables