Question

when males and females of the same species show observable phenotypic differences in, for example, size, the species is said to show

○ gender distinctiveness
○ phenotypic magnitude
○ sexual differentiation
○ sexual dimorphism

Explanation:

Sexual dimorphism refers to the condition where males and females of the same species exhibit observable phenotypic differences such as size, color - ation, or secondary sexual characteristics. Gender distinctiveness is not a scientific term in this context. Phenotypic magnitude is not the correct term for this concept. Sexual differentiation is more about the development of sexual characteristics during an organism's life - cycle. Sexual dimorphism specifically describes the differences between the sexes in appearance.

Answer:

sexual dimorphism