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.
Invertebrate animals that have a SEGMENTED body, a tough EXOSKELETON, & JOINTED APPENDAGES. They are the most diverse and most successful animals of all timeâ3/4 of a million species have been identified. An external skeleton much like a suit of armor that protects and supports the animalâs body.rthropods are classified based on the # & structure of their body segments & appendages-particularly their mouthparts. Growth & development of insects usually involves metamorphosis, a process of changing shape and form.