ecological reserve

ecological niches and their resident species

Individuals cannot _____ the responsibility for protecting the ecological environment.

Hong Kong ______ as a dominant force in environmental and ecological protection.

​The ecological protection system is an important part of the farming system.‌

Ecological harmony, social harmony and advanced state of human<br/>civilization are__________ thought for ecological civilization () A: American B: Chinese C: European D: Asian<br/>问答题:

All human beings should help to deal with the problem of the ecological crisis.

以下关于生态学研究（ecological study），说法错误的是

•A good ecological environment is the fairest public product, and the most accessible welfare for the people.

中国大学MOOC: 7.生态伦理学(ecological ethics)，也称( )。