Â· just now. Report Abuse. It takes a good 6-8 weeks for a break to heal properly. A compound fracture, spiral fracture or complete break would take closer to 8 weeks. A greenstick fracture could heal in as little as 4-6.eport Abuse. Most broken bones begin to heal within 48 hours however depending on the type and severity of the break it could take anywhere from 4 to 8 weeks to completely heal.
Science Main Index. Animals with an internal skeleton made of bone are called vertebrates. Vertebrates include fish, amphibians, reptiles, birds, mammals, primates, rodents and marsupials. Although vertebrates represent only a very small percentage of all animals, their size and mobility often allow them to dominate their environment.
Skeletons support animals, give their bodies shape, and protect their internal organs, but not all animals have the same type of skeleton. 1  Following are the three different kinds of skeletons you may see in your study of biology: 1  Hydrostatic skeletons: Found in creatures such as worms and jellies, hydrostatic skeletons are basically chambers filled with water. 2  Exoskeletons: These are exactly what they sound like â skeletons on the outside of the body.