The involuntary muscles of the arteries are controlled by system. respiratory, skeletal, nervous, circulaory

The involuntary muscles of the arteries are controlled by the nervous system. The correct option among all the options that are given in the question is the third option or the penultimate option. these muscles are not directly under the control of any person and so are called involuntary muscles. I hope the answer helps you.

Change in speed or direction : )

The question is incomplete. complete question is attached belowanswer: correct answer is option b  i.e.  solid particles  reason: filter paper has small pores, through which smaller particles can pass through. however, solid particles  have relatively larger size. hence, they are least likely to pass through.