A. Contracts and rises
B. Contracts and goes downward
C. Relaxes and rises
D. Relaxes and goes downward

A. Pharynx
B. Oral cavity
C. Larynx
D. Trachea

A. Water
B. SO,
C. Air
D. CO2

A. Glucose
B. Carbon monoxide
C. Carbon dioxide
D. Proteins

A. Body fluids
B. Lymphatic system
C. From body Cells to arteries
D. All of these

A. Osmosis
B. Evaporation
C. Diffusion
D. Vaporization

A. Tissue
B. Aorta
C. Stomach
D. Lungs

A. 54 ml
B. 50 ml
C. 04 ml
D. 98 ml

A. Developing the muscle
B. Degenerating the muscles
C. Causing muscle fatigue
D. All of these

A. Tetany
B. Tetanus
C. Cramp
D. None of these