We use a dichotomous key to figure out what kinds of organisms were related to in the past. i'm not ver confident in explaining how it works so you might want to look online.
Regulation of water balance in the joint is not a characteristic.
Synovial fluid is made of proteins and cells, rich in hyaluronic acid.
You can found it on articulations covering de extremes of the bone.
Its function is to lubricate the movement, protect the articular cartilage and shock absorption when we jump or have some kind of impact.
A scientist can study <span>the relationship between the Tiktaalik roseae and modern fish and tetrapods by creating </span>a diagram that hypothesizes ancestry relying on the fact that common descent<span> describes how, in </span>evolutionary biology<span>, a group of </span>organisms<span> share a </span>most recent common ancestor<span>.</span>
