Oh, dude, an apparatus is basically just a fancy word for a tool or piece of equipment. Like, you know when you're cooking and you use a spatula to flip your pancakes? That's an apparatus. Or when you're in a science lab and you use a microscope to look at tiny things? Yup, another apparatus. It's like calling a hammer a "manual nail-driving apparatus" - same thing, different vibe.
If you have an example of a common biological apparatus you are probably holding a beaker. The beaker is the most common and well recognized biological apparatus.
An example sentence would be: A graphing calculator is an apparatus used for math or algebra.
Its a type of appliance or machine. The guards had the apparatus of the past
a dog
compass
A filtration apparatus is for example a separation device.
to hold some apparatus with restort stand. Example of apparatus:1) holding burrete 2) holding pipette
What_are_each_of_the_different_laboratory_apparatuses_and_how_are_they_used
Golgi apparatus is a scientific term. An example sentence that uses this term is: The Golgi apparatus is an important part of the structure of many cells.
Go the the related link below.
Physical chemistrical apparutus
See for example a general catalog at the link below.