Q.

How many of the following organisms show haplo-diplontic life cycle ?                               

Sphagnum, Volvox, Ulothrix, Marchantia, Polytrichum, Selaginella, Pinus, Cedrus, Ectocarpus, Polysiphonia

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a

Six

b

Eight

c

Nine

d

Seven

answer is B.

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Detailed Solution

Sphagnum, Marchantia, Polytrichum, Selaginella, Ectocarpus,Polysiphonia show haplodiplontic life cycleVolvox, Ulothrix show haplontic life cyclePinus, Cedrus show diplontic life cycle.

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