The circulatory system of the human body is composed of many large and small blood vessels that transport blood throughout the body. The largest artery in the human body is the aorta. This blood vessel is responsible for pumping oxygenated blood from the left side of the heart to the head and body. The aorta is attached to the left ventricle of the heart.
Although there are many different species of both wallabies and kangaroos that span a wide range of sizes, wallabies only tend to weigh between four pounds and 53 pounds (2 kg to 24 kg) and grow a mere 12 inches to 24 inches (30 cm to 104 cm) tall, not including their tails [source: Wallaby].
All wallabies are in the kangaroo family, but the term wallaby is used for a number of the smaller and more stocky species of the family. Wallaby can refer to both the small â¦ er types of kangaroo, or to the genus Wallabia.All are Macropods.The largest of the kangaroos, the Red Kangaroo and the two species of Grey Kangaroo, may stand up to 1.8 metres (about 6 feet) in height, whereas the largest of the wallabies is, at most, about 1 metre in height.ll are Macropods. The largest of the kangaroos, the Red Kangaroo and the two species of Grey Kangaroo, may stand up to 1.8 metres (about 6 feet) in height, whereas the largest of the wallabies is, at most, about 1 metre in height.