Mention two morphological differences between pteridophyte
and spermatophyte

THE DIFFERENCE is that spermatophyte is (botany) any plant that bears seeds rather than spores while pteridophyte is any plant of the division pteridophyta, of simple vascular plants that reproduce via spores rather than seeds and that alternate generations of diploid (sporophyte) and haploid (gametophyte or prothallus) forms

Explanation:

this protocol provides a detailed procedure for nucleoprotein extraction from cultured cells and tissues in an efficient manner.

the correct answer: the index of refraction of the second medium is lower i tried this persons answer and it was wrong this person is lying