"a publication in the year 2020 reports on the results of autopsies of elderly people in three cultures. of individuals in the study, 90% showed signs of osteoporotic fractures and osteoporosis. what might the researchers suggest is happening in these cultures? "

Longevity of the individual is increasing  in the given cultures

Explanation:

The research report in the publication reveals that the average age of human beings has been extended from the prescribed longevity. Genetically the longevity of human beings is calculated according to region and their habitation.

Due to the medical revolution and invention of medical equipment has given the salvation for diseases which were not in the olden days. Because of the medicines and medical support gadgets, longevity is extended. Due to this extended life bone of the 90% of old age people got affected by osteoporosis in which bone density becomes very fragile.  

answer; i believe the answer is 80%, plz check first good luck;