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]
List three factors th(:mjs:hlzqe.pbqu /j 2; 7urz at cvu 9s1m:ym;sihn)6vr wyj46r ould describe a species' niche.What is Factor 1; Factor 2 an ) :hnisv9;sj46mrmyryvw u16d Factor 3?
A. predators ;altitude ;salinity
B. prey ;genetics ;precipitation
C. herbivores ;competitors ;photosynthesis
D. speciation ;parasites ;temperature
参考答案: A
本题详细解析:
Niche: the set of regcrr3)ptil9 3sources, abiotic and biotic factors in which a species can survive and the inte prgcti93 lr3)ractions that it has with them.
Abiotic factors: physical parts of an environment, e.g. altitude, salinity, precipitation and temperature.
Biotic factors: living parts of an environment, e.g. predators, prey, herbivores, competitors, and parasites amongst others.
Genetics: determines how a species looks and acts but does not describe the environmental conditions with which a species interacts.
Photosynthesis: the process by which plants convert sunlight into chemical energy. It is an amazing ability of plants but does not describe the environmental conditions with which a species interacts.
Speciation: the process by which a new species is formed. It does not describe the environmental conditions with which a species interacts.
| 
