Answer:
The main difference between microtubules and microfilaments is that microtubules are long, hollow cylinders, made up of tubulin protein units whereas microfilaments are double-stranded helical polymers, made up of actin proteins.
UNVY-A is supoorted by other things u dint need more chemicals
ŸÀ its the movement i think i know it is acually
The answer is a because i took it on k12