Question

Cycas and adiantum resemble each other in having

Answer 1

Multiciliated motile sperms are found in both Cycas (gymnosperm) and Adiantum or walking fern (pteridophyte). Seeds and cambium are present in Cycas (quite common in gymnosperm) but absent in pteridophytes. Vessels are absent in both.

Answer 2

Cycas (a gymnosperm) and Adiantum (known as Maiden hair fern, a pteridophyte) resemble each other in having motile sperms.