Final answer:
The individual features of organisms are determined by genetics and the environment.
Step-by-step explanation:
Organisms have individual features that are a result of genetics and the environment. Genetics play a role in determining an organism's traits through inherited genes and alleles. However, environmental factors such as sunlight exposure or food availability can also influence how these genes are expressed in the phenotype, resulting in variations among individuals. Therefore, the individual features of organisms are determined by a combination of genetics and the environment.