None of these species may feel entirely “at home"in the new place — but together, they may make a(n) _______ species list.
A: progressive
B: aggressive
C: impressive
D: excessive
A: progressive
B: aggressive
C: impressive
D: excessive
举一反三
- Effects of long term use of pesticides include ( ) A: imbalances in ecosystems B: develop new dominant pest species C: lose keystone species. D: Beneficial organisms and even natural enemies of the pests may be among the species eliminated by pesticides
- Which of the following may take place if the clearance of the main bearings are excessive?（）
- According to marine ecologists, transplanted marine species A: may upset the ecosystems of coastal waters. B: are all compatible with one another. C: can only survive in their home waters. D: sometimes disrupt shipping lanes.
- 中国大学MOOC: What is the logical order of the following paragraph?Figure 1 also shows that, in spite of the extensive loss of species, the number of species began to rise again and biodiversity began to return. At the start of May 2002, the number of different species in the soil had increased to nearly 15,000.
- What is a bird’s “territory”？ A: A<br/>place where families of other species are not accepted. B: A place wherebird may shout at the top of its voice. C: An area for which birds fight against each other. D: An area which bird considers to be its own.