Those tiny holes are called perforations. They are created to make it easy to tear paper cleanly along a designated line.
Insects have openings called spiracles along their abdomens that allow them to take in oxygen. These spiracles lead to a network of tubes called tracheae, which deliver oxygen directly to the insect's cells. This respiratory system is adapted for the efficient exchange of gases in insects.
Need more info, How long is the blade, do you mean literally the bolt on blade across the bottom or the whole thing (curved section, mounting holes ect.) hopefully this is clear
They are called "black holes".
The holes on your sneakers are called 'eyes'
Millipedes breathe through small holes called spiracles. Spiracles function similar to the gills of a fish and never close completely. These holes are found in pairs along the millipedes body.
holes
Holes.
Cockroaches breathe through the tiny holes called spiracles which are present along the side of their body. Oxygen enters the cockroach through these holes and follows the tiny breathing tubes called tracheae to all of the cockroach's body parts.
I do not know if they have a musical name but they are commonly just called Recorder Holes.
The F holes in a cello are called... <drum roll!> F-holes! They are also called 'sound holes', and acousticians might refer to them as 'ports'.
They both have blow holes and also they breach. they don't get along with each other