This was a student in Biolgy Class test

Students in a Biology class were taking their final exam.The last question was:'Name seven advantages of Mother's Milk.' The question was worth 70 points.One student, in particular, was hard put to think of seven advantages.However, he wrote:1) It is perfect formula for the child.2) It provides immunity against several diseases.3) It is always the right temperature.4) It is inexpensive.5) It bonds the child to mother, and vice versa.6) It is always available as needed.And then the student was stuck. Finally, in desperation, just before thebell rang, he wrote:7) It comes in two attractive containers and it's high enough off the groundwhere the cat can't get it.He got an A.