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Origin of seed habit or its foundation w...

Origin of seed habit or its foundation was laid on selaginella like pteridophytes but seed formation did not occur because of

A

In situ development of female gametophytes

B

Absence of precocious development of microgametophyte

C

Absence of integumented megasporangium

D

Dependence on water for pollination

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A. Heterospory is found in all members of pteropsida B. Selaginella is advance among pteridophytes as it produces seeds C. Pinus leaves are monomorphic , pinnate compound and have sunken stomata as adaptation transpiration D. Sporic meiosis is characteristic of life cycle in many organisms like Volvox , Chlamydomonas and Ulothrix .

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AAKASH INSTITUTE-TEST 5-EXAMPLE
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  11. Pollination in angiosperms is said to be indirect because

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