Final answer:
For a trait to be mostly influenced by nurture, the heritability would be low, indicating a greater influence of environmental factors over genetics.
Step-by-step explanation:
For a trait to be mostly influenced by nurture, the heritability would be low. Heritability is the fraction of phenotype variation attributable to genetic differences among individuals within a population.
The higher the heritability, the greater the role genetics play over the environment. Conversely, a low heritability score would mean that environmental factors have a more significant influence on the trait.
In relation to the nature vs. nurture debate, it's crucial to remember that traits are usually polygenic and not determined solely by genes or solely by the environment but by the interplay of both.
Complex traits, such as intelligence or behavior, often have many contributing factors that are difficult to separate experimentally.