A layer of smooth cartilage at their ends, which cushions the bones and prevents them from rubbing directly against one another. The whole joint is also enclosed in a synovial capsule, which is full of synovial fluid. The synovial fluid acts like the oil in an engine, lubricating the joint and preventing the cartilage from becoming worn down.
Answer:
Green chemistry, or sustainable chemistry, involves creation on the molecular level:
Explanation:
I believe the correct answer is true. A species accumulation curve can be used as a tool to approximate local, or alpha, diversity. The shape of this curve depends largely on the order of the samples processed. Hope this answers the question.
