Selaginella has a character of evolutionary i | vedclass

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(C) $Selaginella$ is a pteridophyte that exhibits heterospory,which means it produces two different types of spores: microspores and megaspores. This

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Heterospory

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(C) $Selaginella$ is a pteridophyte that exhibits heterospory,which means it produces two different types of spores: microspores and megaspores. This phenomenon is considered a significant evolutionary precursor to the seed habit found in higher plants (spermatophytes). Therefore,heterospory is the key character of evolutionary importance in $Selaginella$.

Selaginella has a character of evolutionary importance. That character is

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$A:$ In Pteridophytes,spores are produced in sporangia. $R:$ In Pteridophytes,sporangia are subtended by leaf-like appendages called sporophylls.

Selaginella possesses an outgrowth proximally on the adaxial surface of its leaves. What is this structure called?

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