Answer: important because it helps make sure no one will get hurt
Explanation:
if there weren't lab rules then people could burn themselves or get severely hurt
The clavicles are the last bone
A phylogeny is a hypothesized relationship between groups of creatures that is represented by a cladogram. A scientist investigating phylogenetic systematics uses a cladogram to depict the groups of species being studied, their relationships, and their most common ancestors.
The main function of the articular cartilage is to provide a smooth surface where the bones connect and touch. It also lubricates that area and makes sure there is low friction. To cusion the bones from rubbing and smacking on each other.