b) A population first divided into two parts, then three parts, and then four parts, until a description identifies a single member.
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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.
Depends on the type of energy. If it is biological energy the answer would be yes since it comes from the sun
The independent variable is the seeds.
