本题目来源于试卷: IB ESS Unit 2: Ecosystems & Ecology，类别为 IB环境系统与社会
[单选题]
Figure: A quadrat in ,* tgpe31qyvlj -ejyoi t/f3)a field
The Figure shows a field with small yellow and medium blue flowers, as well as some four-leaf clover.
Calculate the percentage frequency of the small yellow flowers.
A. 15%
B. 17%
C. 19%
D. 32%
参考答案: A
本题详细解析:
Fifteen of the squares in the quadrat have one or two small yes lpi/4pl /)xgllow flowers in them. There are 100 squaresspx/g ip4 ll/) in total. Thus, option A is correct.
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