In the first few weeks of pregnancy, the amount of hCG in the urine gets higher very quicklyâit doubles every 2 to 3 days. There are two basic types of home pregnancy tests. The most common types of home pregnancy tests use a test strip or dipstick that you hold in the urine stream or dip into a sample of urine. An area on the end of the dipstick or test strip changes color if hCG is present, meaning you are pregnant. A second type uses a urine collection cup with a test device.
Modern sled dogs must also possess good fur, with an undercoat that insulates them from the cold temperatures where they live and run and an overcoat (also called a âguard hair coatâ) that prevents the build-up of ice and snow in windy and cold conditions.
It depends on what they are used for.   A tracking dog-bloodhound   Detection dog-Labrador   patrol (bite dog) - Belgian Malinois, Dutch Shepherd, or German Sheph â¦ erd   Usually, it's not a particular breed, but bloodlines of a breed that are the best.Police dogs are usually bred specifically for the type of work that they will be performing.It's similar to breeding show winning dogs. You would use the best of the best for breeding, then take the ones from the litter that show the most promise, and start training from there.t depends on what they are used for.   A tracking dog-bloodhound   Detection dog-Labrador   patrol (bite dog) - Belgian Malinois, Dutch Shepherd, or German Sheph â¦ erd   Usually, it's not a particular breed, but bloodlines of a breed that are the best.