Multiple choice questions XXXXXX — task. Science CBSE, Class 9.

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1. Most common nitrogen fixing cyanobacterium of paddy fields is

Cylindrospermum
Oscillatoria
Aulosira
Nostoc

2. The kingdom protista includes

Life cycle showing zygotic and gametic meiosis
Life cycle showing gametic meiosis
Life cycle showing sporic meiosis
Life cycle showing zygotic meiosis

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