Ladder: On shipboard, all stairs are called "ladders," except for literal staircases aboard passenger liners. Most "stairs" on a ship are narrow and nearly vertical, hence the name. From the Anglo-Saxon hiaeder, meaning ladder.
Dual staircase
closit under the stairs....
what do you call a person that takes ships into and out of port
A fleet of ships.
A DNA molecule has a unique design that resembles a spiral staircase that scientist call a double helix. It is a winding, two stranded chemical structure.
It's a dual-helaxiocase.
A DNA molecule has a unique design that resembles a spiral staircase that scientist call a double helix. DNA is a two stranded and is a winding chemical structure.
Small ships are usually called boats.
A convoy.
a (double) helix.
A double helix.
A double helix.