Which is correctly labelled?
A= Antheridiophore B= Gemma cup C= Rhizoids
A= Archegoniophore B= Gemma cup C= Rhizoids
A= Gemma cup B= Archegoniophore C= Rhizoids
A= Gemma cup B= Antheridiophore C= Rhizoids
This image represents the female thallus of the liverwort Marchantia. Here is the brief explanation for the labels:
A = Archegoniophore: This is the stalked female reproductive structure that bears the archegonia (female sex organs). You can identify it by its umbrella-like top with finger-like projections.
B = Gemma cup: These are small cup-shaped structures on the dorsal surface of the thallus used for asexual reproduction via gemmae.
C = Rhizoids: These are root-like, multicellular (or unicellular) structures that anchor the thallus to the substratum and absorb water and minerals.
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