Question
In the question below, a sentence is given, divided
into five parts (A) , (B) , (C) , (D) and (E) . One of the parts is grammatically incorrect or has an error in it. You are required to identify the parts that are grammatically correct and choose the option that represents the combination of correct parts. Many different animals fake their own (A) / death as defense mechanism (B) / against predators, with examples (C) / seen among insects, fish, amphibians, (D) / reptiles, birds and mammals. (E)Solution
Solution In B, put article A before DEFENSE MECHANISM, as it is a singular countable noun and singular countable nouns are always preceded by an indefinite article. Thus, B is the right answer.
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For what value of do the simultaneous equations 2x+3y=1, 4x+6y = λ have infinite solutions?
