The smell and taste of foods are influenced by all of the following except

A) the appearance of the food.
B) the texture of the food.
C) the temperature of the food.
D) a person's mood.
E) all of these influence the smell and taste of foods.

A reflex arc is the simplest kind of neural pathway in the nervous system.

What percent of filtrate becomes urine?

A) Less than 1%
B) 5%
C) 10%
D) 80%
E) 90%