求解一道阅读题~~

isueltUID: 3303544

文章：
Paragraph 2: An ecologist who studies a pond today may well find it relatively unchanged in a
year’s time. Individual fish may be replaced, but the number of fish will tend to be the same from
one year to the next. We can say that the properties of an ecosystem are more stable than the
individual organisms that compose the ecosystem.
题目：
3. According to paragraph 2, which of the following principles of ecosystems can be learned by
studying a pond?
○Ecosystem properties change more slowly than individuals in the system.
○The stability of an ecosystem tends to change as individuals are replaced.
○Individual organisms are stable from one year to the next.
○A change in the members of an organism does not affect an ecosystem’s properties

正确答案是1，仔细想了想觉得1更好，，一开始选了4，，想问下是不是4也是正确的但没有1贴切？还是4是错的？错在哪里？- -
先谢谢的说~~~

井蛙王子UID: 3214362

选项1是由the properties of an ecosystem are more stable than the  individual organisms that compose the ecosystem来的。more slowly对应more stable。4在原文没有说，不要自己推理

井蛙王子UID: 3214362

选项1是由the properties of an ecosystem are more stable than the  individual organisms that compose the ecosystem来的。more slowly对应more stable。4在原文没有说，不要自己推理