According to this author, after a forest fire, the first living things to reappear would be
A. algae
B. insects
C. mosses and ferns
D. forest animals
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教师之间的密切配合不直接关系到班级常规管理的效果。()
We can infer that the definition of natural succession the author would support would be______.
A. methods of preventing runoff of water
B. the relationship between the environment and living organisms
C. the effect of living things on the environment
D. how environmental changes change life within an ecosystem
各种网络在物理层互连时要求数据传输率和链路协议都相同。()
Which of the following best sums up activities within an ecosystem？
A. Predator-prey relationships.
B. Interactions among all members.
C. Human-animal interactions.
D. Human relationship with the environment.
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