Answer:
Can be used for simple experiments at home or in the classroom
Its not C. i took he test and got A.
Answer:
yes all coll have ribosomes
While I'd skip the whole idea of reading specific bytes, if it's really worth while for your program you'll probably need to take charge of the file reading yourself so that you can keep track of exactly where you are in the file at all times.
The fact that it's a renewable resource would be the only benefit. All of the others are disadvantages