环境学答案2023

第三章测试

1.Natural selection is the process that determines which individuals within a species will ______________________ the next generation. （ ）
A:generate their genes for
B:reproduce and pass their genes to
C:grow and pass their genes to
D:produce their offspring for

答案:B
2.Climax community is the relative ________________ community that the result of succession. （ ）
A:stable and large
B:stable and short-term
C:stable and constant
D:stable and long-lasting
3.Commensalism is the relationship between organisms in which one organism benefits while the other is ___________. （ ）
A:hurt
B:much affected
C:damaged
D:not affected
4.Keystone species are the species that have a critical role to play in the maintenance of specific ecosystems. （ ）
A:对 B:错 5.An ecosystem approach is important to dealing with environmental problems. （ ）
A:对 B:错 6.Niche is the functional role an organism has in its surroundings (its profession). （ ）
A:对 B:错 7.Succession is the concept that communities proceed through a series of recognizable, predictable changes in structure over time. （ ）
A:对 B:错 8.A community is the abiotic portion of an ecosystem that is a setting of interacting populations of organisms. （ ）
A:对 B:错