题目内容

收藏纠错

题目材料：

In the 2,000-year period immediately before European contact, many native groups of the Northern Plains of North America specialized in big-game hunting, subsisting primarily on bison. Bison routinely became fat-depleted in the spring, reducing their nutritional value, yet these groups did not supplement their diets with the nutritious, fat-rich fish that were abundantly available. Malainey et al. find a possible explanation in late-eighteenth- and early-nineteenth century accounts from three frontiersmen who had adapted to lean-meat diets during extended periods in the plains. Each had an opportunity to consume fish after extended meat dependence and upon eating it, became weak and ill. Malainey notes that prolonged lean meat dependence renders the body incapable of digesting lipids (fats), perhaps explaining native hunters` fish avoidance.

The author of the passage mentions accounts from three white frontiersmen primarily in order to 

Ashow how the frontiers men`s dietary choices were influenced by the native groups with whom they came into contact.
Bsuggest that these frontiersmen had not adapted well to a diet composed primarily of lean meat.
Cindicate what kind of diet was habitually followed by native big-game hunters of the Northern Plains.
Didentify evidence for a hypothesis regarding native hunters` fish avoidance.
Ecall into question an assumption about the effects of fish consumption on people who have adapted to a lean-meat diet.

D显示答案

登录后才可以添加做题笔记哦，还没有账号？马上注册

以上解析由考满分老师提供。

题目讨论

已经输入 0 个字标记为提问，会有更多小伙伴帮你解答提交

全部讨论

只看提问

按时间排序

按点赞数排序

最新提问

题目内容

题目讨论