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

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1. Most common nitrogen fixing cyanobacterium of paddy fields is

Nostoc
Cylindrospermum
Aulosira
Oscillatoria

2. The kingdom protista includes

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

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