<span>True. Stress is the body's automatic physical reaction to real or imagined forces of strain and pressure, particularly those that are psychological, emotional or environmental in origin. As such, stress can have both internal and external causes. </span>
A (n) COMPLETE protein contains all 20 amino acids.
C. Complete
You could run 30 minutes and burn a lot of calories. Its not healthy to run more than an hour if you don't do it regularly though. Studies show that you can lose more calories bicycling than you can running.
I do parkour and have burned A LOT of calories from that.
hope this helps!