"trace chains (n): the chains that connect a horse's harness to a vehicle."
What does a trace of keystones mean in a urine test mean?
Depending on what you mean by "trace", the answer could be yes or no.
It means a trace back to airline.
The most likely cause is weak chains or faulty equipment.
means to out line
110 AA mean in immunoglobulin chains refers to the number of amino acids in a single domain
What does a trace of keystones mean in a urine test mean?
Chains
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why did the early scholars reject fossils as a mean to trace human evolution
This depends on the context in which you are using rastrear. It can mean to trace, to trail or to track.
why did the early scholars reject fossils as a mean to trace human evolution