本题目来源于试卷: Interaction & Interdependence C.8 Populations & Communities，类别为 IB生物学
[单选题]
The Arctic cod, ringedjbh3f 1km28 xx seal, killer whale, polar bear and other organig+ph* fo3)qi xsms live and interact with each other in the cold g3xi) +*hpqof waters of the Arctic Ocean. Which of the following terms best describes them?
A. Population
B. Community
C. Habitat
D. Ecosystem
参考答案: B
本题详细解析:
A community is a group of populations living and interacting unf((t, +bl;)vgtxi d in a shared habitat (biotic factors). The abiotic factors for thvt bl(;g)i,d+ufn tx (is community have not been described but could be the depth of the water, light intensity and the nutrients available for phytoplankton.
A population (Choice A) is a group of organisms of the same species living in the same area at the same time which can interbreed. A habitat (Choice C) refers to the environment in which a species normally lives. An ecosystem (Choice D) is a group of populations living and interacting in a common habitat and includes both biotic and abiotic factors.
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