The anthropologist whose research showed that definitions of masculinity and femininity are not biological given but are learned cultural constructs and therefore subject to change is

The one responsible for the change is Margaret Mead—she is known for her publications and even studies that involves with anthropology, especially in the way her research had defined masculinity and femininity which is shown in the description above. These are all cultural and not based on biological.

answer; /// (culture);

all freedom fighters demanded for constitution. so british finally granted india it's freedom. then a constituent assembly was formed. it's chair man was rajendra prasad and its deputy chairman was dr. br ambedkar.

this assembly take the time of about one year than our constitution was finally formed.

explanation: