[ Vocabulary ]
any required factor that restricts, or holds back the growth of a population
A. community
B. biotic factors
C. abiotic factors
D. limiting factor
Select your answer:
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Mixed Tenses › ViewUse a time expression to complete the sentence: Next week, we (travel) to Europe.
A. traveling
B. will travel
C. travels
D. traveled
Grammar › View
We have been looking for the motorway for more than an hour.
A. have been looking to
B. have been looking for
C. have been looking since
D. have been looking yet