Juvenile osteochondrosis of calcaneum: ________

During a soccer game, a 20 year old man collided shoulder to shoulder with another player. He has pain and a noticeable anterior bulge to the left shoulder. What is the most effective method of immobilizing this injury?

A. An air-inflatable splint with the left arm immobilized in the flexed position B. A long board splint with the left arm immobilized in the extended position C. A sling to support the left arm and swathes to secure the arm to the body D. A sling to support the left arm and swathes to maintain downward traction

Frogs from the family Hyperoliidae CANNOT change their color as a result of:

A)daytime changing to nighttime B)temperature changes C)humidity changes D)nervous stimuli