Submitted by admin on Sun, 05/18/2014 - 13:16
definition:
The variety of plant and animal life in the world or in a particular habitat, a high level of which is usually considered to be important and desirable.
sentence:
The extra emphasis on biodiversity due to degradation of natural habitats and accelerating extinction rate of plants and animals worldwide has placed a higher emphasis on researchers documenting and describing new species before they disappear.
difficulty:
medium
toefl frequency:
3
toefl classification: