Final answer:
The provided numerical data lacks clear context, making it impossible to accurately sequence the events from oldest to youngest. Whether pertaining to geological strata or developmental stages, additional information is needed to correctly arrange the units.
Step-by-step explanation:
From the information provided, it appears that we're dealing with a sequence of events, likely from a biological and developmental context. To place the units in order from oldest to youngest, we need to find a logical sequence that reflects a typical progression through those units based on the given numerical clues. Unfortunately, the information is fragmented and confusing, making it challenging to provide an accurate sequencing without additional context. If this pertains to developmental milestones, events, or geological strata, additional information is needed to correlate the units to specific stages or processes.
If this question is related to geological strata, the correct sequence would typically be from oldest at the bottom to youngest at the top, which suggests an order that corresponds to layer deposition over time. However, without a clear stratigraphic context, it's not possible to confidently arrange the units.
If this is about developmental stages in the human lifespan, one would expect to sequence the events from birth to old age, but again, the provided data doesn't easily map onto known developmental milestones.