Final answer:
An organism's phenotype is its observable properties, which are determined by the combination of genes it possesses and can be influenced by environmental factors.
Step-by-step explanation:
An organism's phenotype refers to its observable properties, such as its color and structural morphology. It is the result of the combination of genes that the organism currently possesses. The phenotype can be influenced by environmental factors, such as sunlight and food availability, which can affect gene expression.