The main difference in use of energy between industrial systems and ecosystems shows as
选项:
A:Energy flows into both ecosystems and industrial systems from the lowest trophic level;
B:Energy may flow into ecosystems and industrial systems from any trophic level;
C:Energy flows into ecosystems from the lowest trophic level while into industrial systems from any trophic levels;
D:Energy flows into industrial systems from the lowest trophic level while into ecosystems from any trophic levels
发布时间:2024-06-02 13:12:15