According to paragraph 4, all of the following are true of the food of
snowshoe hares EXCEPT
A The preferred food fore hares consists of willow and birch twigs.
B High fiber food is the most nutritious for hares.
C Depletion of the supply of willow and birch twigs cause low birth and growth
rates.
D The food supply takes two or three years to recover after a peak in hare
population density.
答案是B
我的疑問是: D.動物數量到達高峰後才開始回復plants
原文:我怎麼覺得意思是動物數量下降了才開始回復plant
況且willow and birch 是樹木類本身就是high fiber吧, B哪裡錯了?
是我哪裡邏輯不通嗎~"~a 求大大解釋! 感恩!
附上此題對應的原文
The preferred foods of snowshoe hares are willow and birch twigs.
As hare density increases, the quantity of these twigs decreases,
forcing the hares to feed on low-quality high-fiber food.
Lower birth rates, low juvenile survivorship, and low growth rates follow,
so there is a corresponding decline in hare abundance.
Once the hare population has declined, it takes two to three year
for the quantity of twigs to recover.

B很明顯是答案~~因為食物短缺時hares才被迫吃high fiber food原本主食是 willow 跟 birch..當它們產量減少時才去吃的high fiber food 跟 willow and birch twigs 是不同東西吧:p可以把 hares 想成阿公阿嬤,twigs 是米飯,high fiber 是地瓜

原文裡也有low-quality high hiber food,所以並不是所有high fiber food 都是most-nutritious for hares因為吃了low-quality的high fiber food,所以造成出生率和生存率降低btw,原po下次可以把原文附上,可能會有比較多人回應喔:)