Pitcher plant traps insects because it ______________. [1 mark]
(a) is a heterotroph.
(b) grows in soils which lack in nitrogen.
(c) does not have chlorophyll.
(d) has a digestive system like human beings.
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Solution
The correct answer is option (b). (1 mark)
Insectivorous plants such as pitcher plant tend to grow in places where the soil lacks in nitrogen, thus they trap insects for their nitrogen requirements.