Question

29. What does mechanical digestion in the stomach involve?
A. absorption of nutrients by villi
B. pepsin and bile
C. smooth muscle contractions
D. bile and pancreatic fluid
30. Which division of the nervous system speeds up your hear rate?
A. somatic
B. autonomic
C. sensory
D. brain and spinal cord
31. for a person who writes with his or her left hand the muscle involved in writing are
A. The left hemisphere of the cerebrum
B. the right hemisphere of the cerebrum
C. both the left and right hemispheres of the cerebrum
D. neither hemisphere of the cerebrum

Answer 1

@JoeDeGenius

Answer 2

29 c
30 b
31 b