any required factor that restricts, or holds back the growth of a population
A. community
B. biotic factors
C. abiotic factors
D. limiting factor
Random Topics:
Verbs, Tenses, and VocabularyGrammar and StructurePronouns of QuantityGrammar - FutureThere is or There areDefinite ArticlesInfinitives for reasonsSuperlative & Comparative AdverbsMain Idea and Sentence StructureTransitive or Intransitive VerbsOther quiz:
Vocabulary & Grammar › ViewStanding in the ____________ bus, I felt very uncomfortable and was sweating all over.
A. crowded
B. surrounded
C. envied
D. drifted
Modals › View
Mary should have done her homework last night instead of watching television.
A. Mary did her homework instead of watching television last night.
B. Mary didn’t watch television and do her homework last night.
C. Mary watched television and did her homework last night.
D. Mary watched television and didn’t do her homework last night.
Grammar › ViewIf we had studied hard,we_____________passed in SEE.
A. will
B. would
C. would have
D. succeed
Grammar › View
Li Fang is singing the national anthem now.
The adverb of time in this sentence is _________.
A. now
B. singing
C. national
D. is