<span>
are always unicellular
may have evolved from prokaryotes
</span><span>are more primitive than prokaryotes
</span>
Answer:
there are all kinds of signals occur in the brain
Explanation:
Hope this help not sure if it is the right answer
Answer:
The respiratory system is made up of the organs involved in the interchanges of gases. It consists of the:
Nose
Mouth
Throat (pharynx)
Voice box (larynx)
Windpipe (trachea)
Airways (bronchi)
Lungs
