What term describes a physical or physiological trait influenced by genotype and environment?

The term that describes a physical or physiological trait influenced by both genotype and environment is "phenotypic variation." This concept encompasses the observable characteristics or traits of an organism, which can be the result of genetic makeup (genotype) and external factors such as diet, climate, and other environmental influences.

For example, the height of a plant can vary due to its genetic potential (its genotype) as well as the amount of sunlight, water, and nutrients it receives from its environment. Phenotypic variation is a crucial concept in genetics and evolution because it explains how traits can differ among individuals within a species and how these traits can be selected for or against in a particular environment, thus playing a vital role in natural selection and adaptation.