My guess is they'd work about the same on human physiology.
She didn't know much about human physiology, but from what little she'd discovered, this one looked to be male.
Whether these species have any actual effect on human physiology is unknown.
It is also useful to frame the discussion in terms of human physiology.
However, the cheela already knew a great deal about human physiology.
During this period, candidates are also introduced to human physiology and psychology.
It required ten minutes of exploration to learn more about human physiology than humans knew.
More than that, they are also test beds for figuring out human physiology.
However, they cannot adequately depict human physiology in all cases.
The grid is thus a geometric response to our human physiology.