Question #eba16
1 Answer
No. Separation discs and heterocysts are both different ways in which hormogonia are delimited - or separated from the originating organism.
Explanation:
A heterocyst finally breaks off from the filament causing fragmentation. These fragments are called hormogonia and undergo asexual reproduction.
A separation disk is a biconcave gelatinous layer found between two adjoining vegetative cells in some blue-green algae and associated with hormogonium formation.
https://www.merriam-webster.com/dictionary/separation%20disk
Hormogonia:
This method of vegetative reproduction is found in blue-green algae. The trichomes of blue-green algae break up within the sheath into many-celled segments called hormogonia or hormogones. They remain delimited by the formation of heterocysts, separation discs or necridia or by the death and decay of intercalary cells of the trichome.
http://www.biologydiscussion.com/algae/reproduction-in-algae-3-modes/46735
