The phrase "comprise variable" is not correct in English as it lacks clarity and proper context.
It could be used in a technical or academic context where you are discussing the components or elements of a variable, but it needs to be part of a more complete sentence.
Example: "The study aims to identify the factors that comprise variable X in the analysis."
Alternatives: "include variable" or "consist of variable."
Given the complexity of the disease, the centres comprise variable numbers of specialist CF physicians and nurses, dietitians, physiotherapists and psychologists.
Another issue with such statistical approaches is that genotypes have to be determined for each individual sampled, which poses problems in cases of polyploïdy, aneuploidy, copy-number variation or chimerism when individuals comprise variable numbers of haplotypes and the genotypes cannot be determined (as we experienced in a previous study of Pocillopora corals from Hawaii [ 26]).
In that used here the symbols employed in PC first comprise variables (for which the letters p, q, r, … are used, with or without numerical subscripts); second, operators (for which the symbols ∼, ·, ∨, ⊃, and ≡ are employed); and third, brackets or parentheses.
Primitive terms comprise variables and constants, whereas compound terms are formed by combining terms.
The teeth of chitons (marine molluscs) represent an excellent example of a composite biomineralized structure, comprising variable layers of iron oxide, iron oxyhydroxide and apatite.
The system comprises variable traffic signs used to communicate changing driving conditions, possible restrictions, and other information to motorway users.
For instance, a notable spike in variation is evident in the 3' portion of exon 5, with 34% of nucleotide positions 1646-1708 (33% of the third codon positions) comprising variable sites (these sites correspond to amino acid residues 134-153).
Microscopically, the MAs comprised variable proportions of proliferating cells forming small glomeruloid bodies.
Lately, in 1993, gene IT15 (interesting transcript 15), which codes unstable protein huntingtin (htt) comprising variable number of CAG repeats, was identified [ 5].
The T cell antigen receptor (TCR) complex comprises variable α/β subunits that recognise peptide/major histocompatibility (MHC) complexes and invariant signal transduction subunits of the CD3 antigen.
The degree of postcopulatory sexual selection, comprising variable degrees of sperm competition and cryptic female choice, is an important evolutionary force to influence sperm form and function.
