This type of variability seems to be most common among beginning learners, and may be entirely absent among the more advanced.

Gene flow is either absent or greatly restricted among these isolated pockets.

Notably absent among the defendants were any representatives of the French political elite.

Conspicuously absent among those present in the racing community was Enzo Ferrari.

Harbinger is notable for having a singular spike extending from its face, something that is absent among other Reapers.

Noticeably absent among the 39 public speakers, however, were members of the riding public.

The new profit center structure required an aggressive, competitive attitude that was markedly absent among Kodak's veteran managers.

It is almost completely absent among prokaryotes (i.e., bacteria), although there are some exceptions such as Mycoplasma, which require cholesterol for growth.

This haplotype is absent among non-Jews in 2099 analyzed in the study.

But blacks are virtually absent from senior Government, military and diplomatic ranks or among opinion makers and business executives.