Question

fern sporangium burst at:​

Answer 1

The Launching Fern Sporangia. ... The sporangium of the fern has a ring of cuboid-shaped cells around the outside called the 'annulus''; each of the cells is filled with water, which is lost to evaporation when the environment is dry. The loss of water causes the cells to shrink as the volume inside the cell decreases.

Answer 2

Hey Dear,

◆ Answer -

Fern sporangium burst at stomium.

● Explanation -

• Ferns are non-flowering plants & reproduce by release of spores from undersides of fronds.
• Spores are formed & stored in a sack-like structure called sporangium.
• These sporangia gradually mature & burst at a position called stomium.
• Stomium is the part of the sporangium of ferns that ruptures to release the spores.

Hope this helped you.