Western music is notated on a system that specifies pitch and the relative lengths of notes.
Wing shape, governed by the relative lengths of the forearm and the fingers, varies greatly, in adaptation to flight characteristics.
Plants have various proteins that sense relative lengths of dark and light periods during a day (it is actually the dark period they are sensing; examples of plants' light-sensing proteins are phytochrome and cryptochrome).
Some involve physiological or psychological considerations, such as the fact that, when making visual comparisons, relative lengths are more accurately perceived than relative areas.
A CHILD'S future really may be written in his hands—not in the creases of his palms but in the relative lengths of his fingers.
Particle form is the overall shape of particles, typically defined in terms of the relative lengths of the longest, shortest, and intermediate axes.
The structure and dynamics of a population depend, among other things, on the relative lengths of these ages, the rate of recruitment of individuals (either by birth or by immigration), and the rate of emigration or death.
The relative lengths of the segments of the legs must be such that, as the bird shifts from a standing to a sitting position, its centre of gravity remains over the feet.
The relative lengths of the grafted polyethylene chains are assessed.
T+C dietary supplementation only affected carcass relative weight and jejunum and ileum relative lengths.
Only the relative lengths, the ratio of lengths, of any two vectors \ \bfrac{\lvert v_p \rvert}{\lvert w_p \rvert}\) is determined.
