Which term describes the influence of the environment on traits, even with the same genotype?

The term that best describes the influence of the environment on traits, even with the same genotype, is environmental effects on phenotype. This concept highlights how environmental factors such as nutrition, temperature, and exposure to toxins can alter how genes are expressed, thus affecting the observable characteristics of an organism.

Although individuals may have identical genotypes, the resulting phenotypic traits can vary significantly due to these external influences. This understanding is crucial in fields such as genetics, ecology, and evolutionary biology, as it underscores the complex interplay between genetics and the environment in shaping an organism's traits.

Phenotypic variation refers more broadly to the differences in physical appearance among individuals that can be attributed to both genetic and environmental factors but doesn’t specifically emphasize the role of the environment alone. Genetic drift and natural selection are concepts related to population genetics and evolution, focusing on changes in allele frequencies over time rather than the immediate effects of environmental factors on the expression of traits.