Answers: 1.Circulatory system-pumping blood to and from the body and lungs with the heart 2.Digestive system-digestion and processing food with salivary glands, esophagus, stomach, liver, gallbladder, pancreas, intestines, rectum, and anus.
During the tie, the male turns around so the dogs are back to back and can defend themselves. The tie typically lasts 20 to 40 minutes. It may be just a few minutes, and dogs can mate successfully without becoming tied at all. The evolutionary reason for the tie is unknown, but it's assumed that if a male dog is tied to a female, it prevents other males mating with her. Unwanted Mating.
This kit was cheap. All it consist of is basically dog tie anchors and cheaply made tie down staps. Save your money and just buy dog tie out anchors from Wal-mart and a cheap set of straps. I can not even get the staps to hold basically ended up thowing them away and buying some decent straps from Harbour Freight.