Question

seeds dispersed by explosion​

Answer 1

Answer:

Violets, poisonous squirting cucumbers, and touch-me-nots or Impatiens capensis (not to be confused with these touch-me-nots) have an effective way of dispersing their seeds: They burst! The forceful ejection sends the seeds flying as far away as possible from the original plant.

Explanation:

Some fruits can fling their seeds away when they are ripe.  

Some plants have pods that explode when ripe and shoot out the seeds.

Pea pods often use mechanical dispersal. When the seeds are ready, the pod dries up. When the pod dries, the inside of the pod dries faster than the outside. This makes the pod twist inside, suddenly splitting open violently, rolling into a little spiral. When this roll happens, it makes the seeds fly out of the pod in all directions.

Lupins, gorse, and broom also scatter their seeds in this way.  

Unexpectedly, this mechanism relies on the geometry of asymmetric secondary cell wall thickenings in the seed pod. These stiff cells' walls are shaped like hinges, which can open. This flattens the cross-section of the seed pod wall, causing sudden mechanical failure of the structure and explosive coiling.

Answer 2

Answer and Explanation:

Some fruits can fling their seeds away when they are ripe.  Some plants have pods that explode when ripe and shoot out the seeds.  Pea pods often use mechanical dispersal. When the seeds are ready, the pod dries up. When the pod dries, the inside of the pod dries faster than the outside. This makes the pod twist inside, suddenly splitting open violently, rolling into a little spiral. When this roll happens, it makes the seeds fly out of the pod in all directions.  Lupins, gorse, and broom also scatter their seeds in this way.