AP BIOLOGY

Detailed explanation-1: -Sexual dimorphism is also observed in Oryctolagus, females are significantly heavier and larger than males. Thus, the correct answer is ‘Ascaris and Oryctolagus. ‘

Detailed explanation-2: -Sexual dimorphism is the systematic difference in form between individuals of different sex in the same species. For example, in some species, including many mammals, the male is larger than the female. In others, such as some spiders, the female is larger than the male.

Detailed explanation-3: -In mammals, species with high sexual size dimorphism tend to have highly polygynous mating systems associated with high variance in male lifetime reproductive success (LRS), leading to a high opportunity for sexual selection.

Detailed explanation-4: -Sexual dimorphism is the condition where the sexes of the same animal and/or plant species exhibit different morphological characteristics, particularly characteristics not directly involved in reproduction. The condition occurs in most animals and some plants.