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]
d. The population was estimated by using drones tzevw.ls.an92a + 0n qko photograph tlp1op g3t0hvt+iwu 04he population. Suggest why the population estimate is given to htwvig1 lt04o0+up p3an uncertainty of ± 10.
参考答案: Photography is an accurate method of measurement/photography can be carried out over the whole island/ photography would not give a great difference between the estimated and the true population. Not all the goats may have been photographed.
The population may change each day/goats may be born or die.
本题详细解析:
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