本题目来源于试卷: SL Topic C4.1 Populations and communities，类别为 IB生物学
[问答题]
a. Explain why the nestst3ma*s6pdlq i p ./5hr can be countesk6 np6 /-vy.r vd2drq; jxz8yd by direct count but the ant population of a colony must be estr/s8p kdnx. v6; z y-jq6d2yrvimated.
参考答案: The nests are large and easily counted.
The nests that have been counted can be marked.
The ant population is too large to be counted directly.
Ants are moving most of the time, making it difficult to identify animals already counted.
本题详细解析:
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