Question

the human population category whose boundaries allegedly correspond to distinct sets of biological attributes is
social class.
caste.
race.
ethnic group.

Explanation:

• Social class: Defined by economic and social status, not biological attributes.
• Caste: A social stratification system, often based on heredity and occupation, not biological.
• Race: Historically (though inaccurately) associated with distinct biological attributes like skin color, facial features (scientifically, race is a social construct but the question refers to the alleged biological - based categorization).
• Ethnic group: Based on shared culture, language, history, etc., not primarily biological.

Answer:

race.