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Conifers are grouped in

Conifers produce cone that are

What are the largest organisms to ever have lived on planet earth?

What did the resin canals impregnated into the wood of conifers aid?

Conifers are adapted to dry conditions and fires?

Protected sex male gametophytes are protected in...

Protected sex female gametophytes are protected in...

Ovules turn into seeds with food stores for the embryo...

Flowering plants are grouped as

Flowering plants are very important in...