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.
All vertebrate animals, including humans, have a backbone and an internal skeleton. Our skeleton helps to give us our shape, helps us move, and protects soft body parts. While skeleton shape and structure vary greatly from animal to animal, all vertebrates have a skeleton.Invertebrates do not have vertebrae in them. Some, like lobsters or dragonflies, have an exoskeleton, a hard covering that functions similarly to the skeleton of a vertebrate.Some are shelled, like snails and oysters.ll vertebrate animals, including humans, have a backbone and an internal skeleton. Our skeleton helps to give us our shape, helps us move, and protects soft body parts. While skeleton shape and structure vary greatly from animal to animal, all vertebrates have a skeleton.