Which change that occurs to food in the digestive system is a physical change and not a chemical change?
a. bacteria converting lactose into simple sugars in the intestines
b. digestive enzymes breaking down proteins into smaller fragments.
c. teeth grinding an almond into smaller pieces in the mouth
d. saliva converting food molecules into simple sugars

What best describes maintaining homeostasis

At 2: 00 am, a 17-year-old boy, accompanied by his 19-year-old girlfriend, had driven to the bar to give his father (who had been drinking large amounts of alcohol) a ride home. on the way back, they were involved in a motor vehicle collision. the boy has a large laceration with profuse bleeding on his forehead. his girlfriend is unconscious in the front passenger floor. the father is standing outside the vehicle, appearing heavily intoxicated, and is refusing care. what is the best way to gain consent to begin care when his father has an altered mental status or is unconscious? a. phone his mother for consent. b. call his grandparents for consent. c. it is a true emergency, so consent is implied. d. you are covered under the good samaritan laws.

7. how does compromise affect healthy relationships? a it makes them stronger.b it people understand who is right.c it makes them weaker.d it people accept compliments.