Which of the following is not a cellular activity associated with microtubules? a. maintenance of axonsb. maintenance of cell shapec. cytokinesis of animal cellsd. axonemal structuree. formation of mitotic spindle

a. Maintenance of axons.

Explanation:

Axons are not maintained by microtubules. Microtubules are used in axons as railways  to transport different molecules to the terminal branches of the axon or to the soma of the neuron. Axons are maintained by a special type of cells called Schwann cells.

I think D. It stores chemical energy