Truck Driving School Costs. The average length of PTDI-certified courses is four to six weeks, though courses may be as short as two weeks or as long as 12 weeks or more. The average cost of PTDI-certified courses is about $4,200, though the cost of truck driving school may be as low as $1,500 and as high as $10,000.
Orthopnea is the opposite of platypnea, shortness of breath that worsens when sitting or standing up.
Platypuses, like all vertebrates, have bilateral symmetry. This means they have symmetry across one plane (known as the sagittal plane, and directly down the centre of their b â¦ ody), which means one side of their body approximately mirrors the other side.1 person found this useful. platypus is a monotreme, which is an egg laying mammal. It is semi-aquatic, living in burrows in creek banks, and hunting for food in the water. It is one of just two egg- â¦ laying mammals in the world; the other is the echidna. 7 people found this useful.