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.

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles