A production possibility curve shows all maximum possibilities of output for two goods. This curve oftentimes takes the form of a curve to the right. An economy that is coinciding with this curve is said to be efficient. However, if the economy is operating below the curve, then it is said to be inefficient.
B. The sperm cells swim to the egg cells through their watery surroundings.
Glycogen Pathway: Glycogen from the liver and muscles, hydrolyzed into glucose-1-phosphate, together with fats and proteins, can feed into the catabolic pathways for carbohydrates. Glycogen, a polymer of glucose, is an energy-storage molecule in animals.