Wire made of many strands is 'cable'
a cable.
This just means a wire with a solid central core, ie made from one solid length of copper or aluminium, as opposed to a wire made from many thin strands
The surgical wire strands can be used when it comes to survival.
two.
The description you show seems to match the description for 16AWG wire made up of 259 strands of 40AWG, Rope construction with bunch stranded groups. Similar to concentric for the groups of strands. The wire is made up of 7 Bunches of 37 strands of 40AWG strands to make a 16AWG wire. The description should be 16AWG(259/40) construction is 7x37/40. The SWG more than likely stands for Standard Wire Gauge. This construction is a high strand count which would make it flexible. You can learn more about stranding and view a wire gauge chart on the link below.
Electricity primarily travels along the outside of the conductor. So the more "strands" you have the better in most instances.
1
This is made of many little strands of smaller particles and molocules that DNA is made from.
Twisted strands of fence wire with barbs at regular intervals.
The RNA molecule is usually made up of a single strand. This is unlike the DNA molecule which has double strands.
2
i supose its ductile