[ Vocabulary ]
an organism that kills another for food or nutrients
A. predator
B. prey
C. symbiosis
D. mutualism

Random Topics:
Grammar and Verb TensesSimple Past or Past ContinuousJobsPassive Voice in Past Simple TenseTake or PutPossessive Pronouns and QuantifiersVerb Tenses and Sentence StructureRelative Clauses & Real ConditionalsModal VerbsVerb TensesOther quiz:
Conjunctions › ViewYou should always do some exercises, ———- what diet you are following.
A. although
B. in case
C. however
D. besides
E. no matter
Subjective and Objective Pronoun › View
My friends will learn English at course after _____ eat lunch at my home.
A. He
B. We
C. It
D. They
Adjective › ViewI was not ….. to be kept waiting so long.
a.amused
b.amusing
Verb Tenses › View
Did he read a book yesterday?
A. Yes, he did.
B. Yes, he read
C. Yes, he does.