'physical variations' is a grammatically correct and acceptable phrase in written English.
It can be used to refer to differences in the physical characteristics/appearance of people or things. For example, "The different species of butterfly have distinct physical variations."
Gas reservoirs differ greatly, with different physical variations affecting reservoir performance and recovery.
Some of these physical variations must have been controlled by the environment, others by purely random factors.
They also point to the evidence demonstrating that all people regardless of their physical variations are capable of learning any kind of cultural behaviour.
As a consequence, the cultures and the physical variations of the peoples reflect adaptation to both hot, dry climates and hot, wet climates.
Scientists have known for many decades that there is little correlation between "race," used in its popular sense, and actual physical variations in the human species.
Other parts of the cast, though, hum with another special pleasure of a recommissioned hit: the sense of performers who understand their character so completely that they are able to play with subtle vocal, facial and physical variations of the sort that real people have.
In 1998, the American Anthropological Association declared, "Evidence from the analysis of genetics (eg DNA) indicates that most physical variation, about 94%, lies within so-called racial groups.
The continuation of such arguments underlines the need for more fossils to establish the range of physical variation of H. erectus and also for more discoveries in good archaeological contexts to permit more precise dating.
All told, the researchers identified 51 regions in the genome that contributed to physical variation among the breeds.
That differs significantly from humans, he says, whose physical variation is scattered far more widely across their genome, often comprising hundreds or thousands of regions.
Indeed, while the physical variation from one source to the other is continuous and linear, the perceptual variation takes the form of a sigmoïdal or threshold function.
