The phrase "a function of organism" is correct and usable in written English.
It can be used in contexts discussing biological or ecological functions related to organisms.
Example: "The ability to adapt to changing environments is a function of organism evolution."
Alternatives: "an aspect of an organism" or "a characteristic of an organism."
Rather, Dr. Margulis argued that a more important mechanism was symbiosis; that is, evolution is a function of organisms that are mutually beneficial growing together to become one and reproducing.
Our study thus highlights that phenological advancement may not only be a function of an organism's life-history characteristics [12], [13], phylogeny [44], or of a combination of environmental cues that influence the timing of their life-history events (timing of snow melt, temperature, day-length, etc).
They include adaptive plasticity and metaplasticity [ 181, 185] of the organism to amplify [ 169] and modulate the direction of its responses to a salient homeopathic remedy with the passage of time [ 23], as a function of the organism's past history [ 186, 187].
Fitness is given as a function of the organism's ability to utilize the available resources modeled on the Monod equation [ 7], modified such that having high affinity for more resources comes at a cost in fitness leading to trade-offs.
The optimal order for the Markov background model for enhancer sequences is an unknown function of organism complexity and sequence length.
We computed intron density for the four analyzed organisms as a function of expression-level category for all four organisms (fig. 3).
In addition, the authors studied the survival extent of these amphipods as a function of oxygen availability, temperature, and organism orientation into the NMR rotor.
Fitness in the model is a function of the phenotype of the organism.
From the limited number of reports using zebrafish models of intestinal inflammation, the dichotomy in responses seems to be a function of the age of the organism.
